Academic article

• Mosland, Eivind Nag; Lunde, Per; Kocbach, Jan Martin (2024). Diffraction correction in high-precision pulse-echo and multiple-reflection ultrasonic measurement systems for fluids. (external link)
• Mosland, Eivind Nag; Lunde, Per; Kocbach, Jan Martin (2023). Finite element-based diffraction correction for piezoelectric transducers accounting for diffraction at transmission, propagation, and reception. (external link)
• Mosland, Eivind Nag; Lunde, Per; Kocbach, Jan Martin (2023). A spectrum-of-spectrum filtering method to extract direct and multipath arrivals from simulations and measurements. (external link)
• Pedersen, Audun Oppedal; Lunde, Per; Tichy, Frank et al. (2022). Finite-amplitude sound propagation effects in volume backscattering measurements for fish abundance estimation. (external link)
• Sæther, Mathias Myrtveit; Almenningen, Stian; Ersland, Geir et al. (2022). Compressional wave phase velocity measurements during hydrate growth in partially and fully water saturated sandstone. (external link)
• Sæther, Mathias Myrtveit; Midtbø, Simen Hammervold; Lunde, Per (2022). Interaction of three-dimensional acoustic beam with fluid-loaded solid plate: Axial near- to far-field transmission at normal beam incidence. (external link)
• Lunde, Per (2020). Finite‐amplitude power budget equations for acoustic fish abundance estimation. (external link)
• Øyerhamn, Rune; Mosland, Eivind Nag; Storheim, Espen et al. (2018). Finite element modeling of ultrasound measurement systems for gas. Comparison with experiments in air. (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2017). Beam diffraction effects in the backward wave regions of viscoelastic leaky Lamb modes for plate transmission at normal incidence. (external link)
• Aanes, Magne; Kippersund, Remi André; Lohne, Kjetil Daae et al. (2017). Time-of-flight dependency on transducer separation distance in a reflective-path guided-wave ultrasonic flow meter at zero flow conditions. (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2016). Finite aperture influence on energy concentration, frequency shift, and signal enhancement, for acoustic transmission in the negative group velocity region of the S1 leaky Lamb mode. (external link)
• Lunde, Per; Korneliussen, Rolf (2016). Power budget equations and calibration factors for fish abundance estimation using scientific echo sounders and sonar systems. (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2016). Beam diffraction effects in sound transmission of a fluid-embedded viscoelastic plate at normal incidence. (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2015). Transducer beam diffraction effects in sound transmission near leaky Lamb modes in elastic plates at normal incidence. (external link)
• Lunde, Per (2015). Equations describing finite-amplitude effects in acoustic fish abundance estimation. (external link)
• Eveborn, Gry Debora Wisthus; Schirmer, Henrik; Heggelund, Geir et al. (2013). The Evolving Epidemiology of Valvular Aortic Stenosis. The Tromsø Study. (external link)
• Hjertaas, Johannes Just; Fosså, Henrik; Dybdahl, Grete Lunestad et al. (2013). Accuracy of real-time single- and multi-beat 3-D speckle tracking echocardiography in vitro. (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2012). Ultrasonic beam transmission through a water-immersed plate at oblique incidence using a piezoelectric source transducer. Finite element - angular spectrum modeling and measurements. (external link)
• Hallanger, Anders; Frøysa, Kjell-Eivind; Lunde, Per (2002). "CFD simulation and installation effects for ultrasonic flow meters in pipes with bends". (external link)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (2001). "Resonance frequency spectra with convergence tests for piezoceramic disks using the finite element method". (external link)
• Hole, Lars Robert; Lunde, Per; Gjessing, Yngve T. (1997). Effects of strong sound velocity gradients on propagation of low frequency impulse sound: Comparison of FFP predictions and experimental data. (external link)

Academic lecture

• Mosland, Eivind Nag; Lunde, Per; Kocbach, Jan Martin (2023). Using spectrum-of-spectrum (SoS) filtering to extract direct and multipath arrivals from a frequency domain simulation. Comparison with cepstrum and time-gating methods. (external link)
• Mosland, Eivind; Lunde, Per; Kocbach, Jan Martin (2023). Near-field diffraction and reception effects in finite element modeling of ultrasound measurement systems for gas. Comparison to measurements in air. (external link)
• Sæther, Mathias Myrtveit; Lunde, Per (2023). “Contributions from the backward- and forward-wave bands to ultrasonic beam transmission for a fluid-embedded steel plate”. (external link)
• Mosland, Eivind Nag; Kocbach, Jan Martin; Lunde, Per (2022). Errors using the spatially averaged free-field pressure approximation for description of the receiving properties of piezoelectric transducers. (external link)
• Sæther, Mathias Myrtveit; Lunde, Per (2022). "Ultrasonic beam transmission in the backward and forward-wave frequency-wavenumber bands of a fluid-embedded steel plate", Proc. 2022 IEEE International Ultrasonics Symposium, Venice, Italy, 10-13 October 2022, 4 p. . (external link)
• Solberg, Marianne; Lunde, Per; Vestrheim, Magne (2022). Energy-flux density in real-, imaginary-, and complex-valued branches of Lamb modes in an isotropic plate. (external link)
• Sæther, Mathias Myrtveit; Lunde, Per; Vestrheim, Magne (2022). Ultrasonic beam transmission through a water-immersed steel plate in the vicinity of the ZGV angle. (external link)
• Mosland, Eivind Nag; Kocbach, Jan Martin; Storheim, Espen et al. (2022). Radiation in air from a piezoelectric ceramic disk in radial mode vibration. Contributions from front, side and rear surfaces. (external link)
• Mosland, Eivind Nag; Storheim, Espen; Lunde, Per et al. (2021). Diffraction correction for precision measurements of sound velocity in gas. Is full receiver modelling needed?. (external link)
• Sæther, Mathias Myrtveit; Lunde, Per; Vestrheim, Magne (2021). Ultrasonic beam radiation from piston source through water-immersed steel plate using ASM. Pressure-to-pressure transfer function and numerical challenges. (external link)
• Solberg, Marianne; Aanes, Magne; Lunde, Per et al. (2021). Complex dispersion properties of lossy and leaky Lamb modes related to Poisson's ratio. (external link)
• Solberg, Marianne; Aanes, Magne; Lunde, Per et al. (2020). Complex dispersion properties of Lamb modes vs. Poisson’s ratio. (external link)
• Sæther, Mathias; Midtbø, Simen Hammervold; Lunde, Per et al. (2020). Nearfield effects from leaky Lamb modes in a steel plate for normal beam incidence. (external link)
• Papathanasiou, Panagiotis; Lunde, Per; Bezdek, Michal et al. (2020). 3D simulation of ultrasonic flowmeters using a hybrid FEM-FVM method. (external link)
• Sæther, Mathias; Lunde, Per; Almenningen, Stian et al. (2019). Acoustic laboratory measurements of hydrate-bearing Bentheim sandstones. (external link)
• Sæther, Mathias; Lunde, Per; Almenningen, Stian et al. (2019). Elastic wave velocities under methane hydrate growth in Bentheim sandstone. (external link)
• Øygard, Sigrid Husebø; Pedersen, Geir; Lunde, Per (2019). Simulations of acoustic transmission loss of Fin whale calls reaching the LoVe Ocean Observatory. (external link)
• Grindheim, Renate; Lunde, Per; Vestrheim, Magne (2019). Characterization of ultrasound transmit-receive measurement systems in air. Comparison with prior work on piezoelectric elements in radial mode vibration. (external link)
• Midtbø, Simen Hammervold; Aanes, Magne; Lunde, Per et al. (2018). Comparison of angular spectrum models for baffled piston sound field with finite receiver apertures. (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2018). Transmission through an isotropic viscoelastic water-coupled plate using a transmit-receive transducer system. (external link)
• Lohne, Kjetil Daae; Aanes, Magne; Lunde, Per et al. (2017). Finite aperture effects in the backward wave propagation region of a leaky Lamb mode at normal beam incidence. (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2017). Dispersion properties of Lamb and leaky Lamb modes in elastic and viscoelastic plates. (external link)
• Storheim, Espen; Lunde, Per; Vestrheim, Magne (2017). Sound field radiation from a non-uniformly vibrating baffled and circular piezoelectric ceramic disk in radial mode vibration. (external link)
• Storheim, Espen; Lunde, Per; Vestrheim, Magne (2017). Vibration of a baffled piezoelectric ceramic circular disk in lower radial modes, with near- and farfield sound radiation. (external link)
• Andersen, Kenneth Kirkeng; Lunde, Per; Kocbach, Jan Martin (2016). Reciprocity calibration method for ultrasonic piezoelectric transducers in air. Comparison of finite element modelling and experimental measurements. (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2016). Transducer finite aperture effects in sound transmission near leaky Lamb modes in elastic plates at normal incidence. (external link)
• Sæther, Mathias; Lunde, Per; Ersland, Geir (2016). Sound velocity measurement method for porous sandstone. Measurements, finite element modelling, and diffraction correction. (external link)
• Lunde, Per; Korneliussen, Rolf (2015). A unifying theory explaining different formulations of power budget equations and calibration factors commonly used for fish abundance estimation. (external link)
• Søvik, Andre Adelsten; Andersen, Kenneth Kirkeng; Lunde, Per et al. (2015). "Characterization of ultrasound transmit-receive measurement systems in air. Comparison of finite element modelling and experimental measurements". (external link)
• Andersen, Kenneth Kirkeng; Søvik, Andre Adelsten; Lunde, Per et al. (2015). "Reciprocity calibration method for ultrasonic piezoelectric transducers in air. Comparison of finite element modelling and experimental measurements". (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Storheim, Espen et al. (2015). "Beam transmission of water-embedded steel plate at normal incidence. Diffraction effects in the S1 to A3 region”. (external link)
• Sæther, Mathias; Lunde, Per (2015). "Sound velocity measurement method for porous sandstone. Discussion and prelimirary results”. (external link)
• Lunde, Per; Pedersen, Audun Oppedal (2015). "Volume backscattering of finite-amplitude acoustic waves: Power flow, sampled volume, and scattering cross section". (external link)
• Lunde, Per (2015). Equations describing finite-amplitude effects in acoustic fish abundance estimation. (external link)
• Hauge, Rune; Mosland, Eivind; Storheim, Espen et al. (2014). Updated results on finite element modeling of a transmit-receive ultrasound measurement system. Comparison with experiments in air. (external link)
• Aanes, Magne; Lunde, Per; Vestrheim, Magne (2013). Ultrasonic beam transmission through a steel plate at oblique incidence: Uniform piston vs. piezoelectric transducer. (external link)
• Frøysa, Kjell-Eivind; Storheim, Espen; Kippersund, Remi andré et al. (2013). Axial sound field from a non-uniformly vibrating circular sound source mounted in a rigid baffle. (external link)
• Mosland, Eivind; Hauge, Rune; Storheim, Espen et al. (2013). Reciprocity calibration method for ultrasonic, piezoelectric transducers in air, including finite element simulations. (external link)
• Hauge, Rune; Mosland, Eivind; Storheim, Espen et al. (2013). Finite element modelling of ultrasound measurement systems for gas. Comparison with experiments in air. (external link)
• Aanes, Magne; Lunde, Per; Vestrheim, Magne (2013). "Interaction of a transducer excited ultrasonic beam with an elastic plate. 3D modeling in comparison with experiments”. (external link)
• Hauge, Rune; Mosland, Eivind; Storheim, Espen et al. (2013). "Finite element modeling of ultrasound measurement systems for gas. System model compared to measurements”. (external link)
• Storheim, Espen; Hauge, Rune; Mosland, Eivind et al. (2013). "Finite element modeling of ultrasound measurement systems for gas. Use of a full receiver description in comparison with spherical reciprocity”. (external link)
• Mosland, Eivind; Hauge, Rune; Storheim, Espen et al. (2013). "Reciprocity calibration method for ultrasonic piezoelectric transducers in air”. (external link)
• Lunde, Per; Vestrheim, Magne; Storheim, Espen et al. (2013). "Industrial ultrasound research at UiB/IFT. From gas flow measurement to structural monitoring". (external link)
• Eldevik, Simen; Olsen, Åge A.; Lunde, Per (2012). Sound velocity change owing to the acousto-elastic / plastic effects in steel measured using Acoustic Resonance Technology (ART). (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2012). "Normal incidence ultrasonic beam transmission through a water-immersed plate using a piezoelectric source transducer. Finite element modeling, angular spectrum method and measurements". (external link)
• Lunde, Per; Pedersen, Audun Oppedal (2012). Sonar and power budget equations for backscattering of finite amplitude sound waves, with implications in fishery acoustics for abundance estimation of marine resources. (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2012). "Ultrasonic beam transmission through a water-immersed plate at oblique incidence using a piezoelectric source transducer. Finite element - angular spectrum modeling and measurements”. (external link)
• Storheim, Espen; Lunde, Per; Vestrheim, Magne (2011). Diffraction correction in ultrasonic fields for measurements of sound velocity in gas. Conventional and alternative methods. (external link)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2011). Finite element analysis of acoustic beam interactions with a plate at normal incidence. Comparison with a 3D angular spectrum method and measurements. (external link)
• Lohne, Kjetil Daae; Lunde, Per; Vestrheim, Magne (2011). Ultrasonic beam interactions with a fluid-immersed steel plate at normal and oblique incidence. Measurement results and comparisons with an angular spectrum method in frequency and time-domains. (external link)
• Kippersund, Remi andré; Lunde, Per; Frøysa, Kjell-Eivind (2011). Hydrate deposit detection in pipes using ultrasonic guided waves. (external link)
• Lunde, Per (2010). "Challenges of ultrasonic quantum measurement of natural gas". (external link)
• Kippersund, Remi andré; Lunde, Per; Frøysa, Kjell-Eivind (2010). "Measurement of fluid viscosity in pipes using multimode ultrasonic guided wave attenuation". (external link)
• Aanes, Magne; Storheim, Espen; Vestrheim, Magne et al. (2010). "Finite element analysis and measurement of ultrasonic piezoceramic transducers in air and water". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Smørgrav, Skule (2010). "Challenges and technology trends in fiscal metering of natural gas including measurement of CO2 emission". (external link)
• Kocbach, Jan Martin; Kippersund, Remi andré; Lunde, Per (2010). "Time domain finite element modeling of SH-mode propagation in elastic plates with deposits". (external link)
• Storheim, Espen; Aanes, Magne; Vestrheim, Magne et al. (2010). "Ultrasonic piezoceramic transducers for air, - finite element analysis and measurements". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Lied, Gaute Øverås et al. (2010). Handbook of uncertainty calculations, - Fiscal oil metering systems based on ultrasonic duty and master meters. (external link)
• Pedersen, Audun Oppedal; Lunde, Per; Korneliussen, Rolf et al. (2009). "Nonlinear sound propagation fisheries research echo" sounders (abstract). (external link)
• Kippersund, Remi andré; Lunde, Per; Frøysa, Kjell-Eivind (2009). "Deposit detection using plate waves". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind (2008). "Pressure and temperature effects for Ormen Lange ultrasonic gas flow meters, - Results from a follow-up study". (external link)
• Deibele, Jochen; Kocbach, Jan M.; Lunde, Per et al. (2008). "Transdusere for SURF avbildning". (external link)
• Lohne, Kjetil Daae; Vestrheim, Magne; Lunde, Per (2008). "Ultrasonic signal transmission in plates. Study of a steel plate immersed in water". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Neumann, Svein et al. (2008). "Handbook of uncertainty calculations, - Ultrasonic fiscal oil metering stations". (external link)
• Kippersund, Remi andré; Kocbach, Jan M.; Lunde, Per (2008). "Simulation of guided waves in a fluid loaded elastic plate". (external link)
• Pedersen, Audun Oppedal; Lunde, Per; Korneliussen, Rolf et al. (2008). "Nonlinear sound propagation fisheries research echo sounders". (external link)
• Frøysa, Kjell-Eivind; Hallanger, Anders; Lunde, Per (2007). "Fiskalmåling av olje med høy vannfraksjon. Sensitivitetsstudie for en turbinmeter-basert målestasjon". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind (2007). "Trykk- og temperatur-effekter for Ormen Lange ultralyd gassmålere". (external link)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar et al. (2007). "Reciprocal operation of ultrasonic flow meters: Criteria and applications". (external link)
• Lunde, Per; Norli, Petter; Vestrheim, Magne et al. (2007). "Precision sound velocity cell as reference for gas quality measurement in ultrasonic flow meters. Preliminary results using two candidate methods with argon at low pressure". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Folkestad, Trond (2007). "Pressure and temperature effects for Ormen Lange ultrasonic gas flow meters". (external link)
• Smørgrav, Skule; Abrahamsen, Atle k.; Lunde, Per et al. (2007). Developments in transducer technology and reciprocity in ultrasonic flow meters. (external link)
• Frøysa, Kjell-Eivind; Lunde, Per; Lied, Gaute Øverås et al. (2007). "Natural gas quality measurement using ultrasonic flow meters. Development of a prototype Gas Analyzer with results from testing on North Sea gas field data". (external link)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar (2006). "Reciprocity in electroacoustic measurement systems, and reciprocal operation: Principles and applications to ultrasonic flow metering". (external link)
• Kalivoda, Raymond j.; Lunde, Per (2006). "Liquid ultrasonic meters for crude oil measurement". (external link)
• Frøysa, Kjell-Eivind; Lunde, Per; Paulsen, Anfinn et al. (2006). "Density and calorific value measurement of natural gas using ultrasonic flow meters. Results from testing on various North Sea gas field data". (external link)
• Norli, Petter; Lunde, Per (2006). "A three-way pulse method for a precision sound velocity measurement cell". (external link)
• Frøysa, Kjell-Eivind; Lunde, Per (2006). "Mass and energy measurement of natural gas using ultrasonic flow meters. Results from testing on various North Sea gas field data". (external link)
• Smørgrav, Skule; Abrahamsen, Atle k.; Lunde, Per et al. (2006). "Developments in transducer technology and reciprocity in ultrasonic flow meters". (external link)
• Smørgrav, Skule; Abrahamsen, Atle k.; Lunde, Per et al. (2006). "Developments in transducer technology and reciprocity in ultrasonic flow meters". (external link)
• Lunde, Per; Kippersund, Remi André; Vestrheim, Magne et al. (2005). "Finite element modeling of sound propagation from a piezoelectric transducer through an elastic layer". (external link)
• Lohne, Kjetil Daae; Vestrheim, Magne; Lunde, Per (2005). "Electrical and acoustical response of of a Pz27 piezoelectric ceramic element in air. Finite element analyses and experimental results". (external link)
• Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). "Nonlinear sound propagation effects in fisheries research echo sounders - Measurements and simulations in fresh water". (external link)
• Tichy, Frank; Solli, H.; Klaveness, H. et al. (2005). "Nonlinear effects in a 200 kHz sound beam". (external link)
• Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). "Quantification of nonlinear sound propagation effects in fisheries research echo sounders". (external link)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar et al. (2005). "Reciprocity and its utilization in ultrasonic flow meters". (external link)
• Frøysa, Kjell-Eivind; Lunde, Per (2005). "Density and calorific value measurement in natural gas using ultrasonic flow meters". (external link)
• Kalivoda, Raymond j.; Lunde, Per (2005). "Liquid ultrasonic meters for crude oil measurement". (external link)
• Pedersen, Audun Oppedal; Lunde, Per; Vestrheim, Magne (2005). "Nonlinear effects in fisheries and research echo sounders and sonars". (external link)
• Norli, Petter; Lunde, Per; Vestrheim, Magne (2005). "Investigation of precision sound velocity measurements as reference for ultrasonic gas flow meters". (external link)
• Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). Consequences of non-linear sound propagation on target strength measurements - preliminary studies. (external link)
• Frøysa, Kjell-Eivind; Lunde, Per (2004). "Mass and energy measurement of natural gas using ultrasonic flow meters. Recent results". (external link)
• Pedersen, Audun Oppedal; Lunde, Per; Vestrheim, Magne (2004). "Convergence and accuracy of the Bergen Code for investigating nonlinear effects in fishery echo sounders". (external link)
• Lunde, Per; Kippersund, Remi andré; Vestrheim, Magne et al. (2004). "Transient diffraction effects in piezoelectric ultrasonic transducers using finite element modelling". (external link)
• Kippersund, Remi andré; Lunde, Per; Vestrheim, Magne (2004). "Finite element modelling of piezoelectric ultrasonic transducer properties in natural gas". (external link)
• Norli, Petter; Lunde, Per; Vestrheim, Magne (2004). "Methods for precision sound velocity measurements in pressure cells for gas characterization". (external link)
• Dahl, Eivind O.; Frøysa, Kjell-Eivind; Lunde, Per (2003). "Handbook of uncertainty calculations. Fiscal orifice gas and turbine oil metering stations". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Kippersund, Remi andré et al. (2003). "Transient diffraction effects in ultrasonic meters for volumetric, mass and energy flow measurement of natural gas". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (2003). "Transient diffraction effects in ultrasonic flow meters for gas and liquid". (external link)
• Lunde, Per; Kippersund, Remi andré; Vestrheim, Magne (2003). "Signal modelling using the FLOSIM system model in ultrasonic instrumentation for industrial applications". (external link)
• Lunde, Per (2003). "Subsea multipath ultrasonic liquid flow meter". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Neumann, Svein et al. (2002). "Handbook of uncertainty calculations. Ultrasonic fiscal gas metering stations". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind (2002). "Mass and energy measurement of gas using ultrasonic flow meters". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind (2002). "Handbook of uncertainty calculations. Ultrasonic fiscal gas metering stations". (external link)
• Vestrheim, Magne; Lunde, Per; Fardal, Rune (2002). "Endelig element modellering av piezoelektriske transduser vibrasjoner". (external link)
• Hallanger, Anders; Frøysa, Kjell-Eivind; Lunde, Per (2001). "CFD simulation and installation effects for ultrasonic flow meters in pipes with bends". (external link)
• Frøysa, Kjell-Eivind; Lunde, Per; Vestrheim, Magne (2001). "A ray theory approach to investigate the influence of flow velocity profiles on transit times in ultrasonic flow meters for gas and liquid". (external link)
• Frøysa, Kjell-Eivind; Lunde, Per (2001). "A ray theory approach to investigate the influence of flow velocity profiles on transit times in ultrasonic flow meters for gas and liquid". (external link)
• Baker, Andrew C.; Frøysa, Kjell-Eivind; Furset, Hilde et al. (2001). "Ultrasonic scattering from liquid droplets in wet gas". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (2000). "Challenges for improved accuracy and traceability in ultrasonic fiscal flow metering". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (2000). "Challenges for improved accuracy and traceability in ultrasonic fiscal flow metering of natural gas". (external link)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (2000). "Finite element modeling of piezoceramic disks including radiation into a fluid medium". (external link)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (1999). "FE simulations of piezoceramic disks with a front layer of varying thickness". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Fossdal, Jon B. et al. (1999). "Functional enhancements within ultrasonic gas flow measurement". (external link)
• Frøysa, Kjell-Eivind; Lunde, Per (1999). “Comparison of simulation models for ultrasonic propagation in wet gas”. (external link)
• Furset, Hilde; Lunde, Per; Vestrheim, Magne et al. (1999). “Investigation of acoustic properties in wet gas for ultrasonic flowmetering”. (external link)
• Baker, Andrew C.; Lunde, Per (1999). “Effects of deposits on the performance of ultrasonic gas transducers”. (external link)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne et al. (1998). “Piezoelectric disks with a front layer. Comparisons of FEM with experimental data”. (external link)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (1997). "FEM analysis of piezoelectric disks - Method and testing". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind (1997). "Influence of piezoelectric transducer response on transit time determination using cross-correlation of chirp signals". (external link)
• Frøysa, Kjell-Eivind; Lunde, Per; Sakariassen, Reidar et al. (1996). "Operation of multipath ultrasonic gas flow meters in noisy environments". (external link)
• Lunde, Per (1995). "Radial modes in thick, circular, isotropic and piezoceramic disks". (external link)
• Lunde, Per; Vestrheim, Magne (1995). "Modelling of loss effects in piezoceramic materials, and adaptation to measurements on radial and thickness modes in thin disks". (external link)
• Lunde, Per; Vestrheim, Magne (1994). "Comparison of models for radial and thickness modes in piezoceramic disks". (external link)
• Lunde, Per (1994). "On the modelling of causal wave propagation in viscoelastic solids". (external link)
• Lunde, Per (1993). "On the modelling of wave propagation in piezoelectric ceramic transducers". (external link)
• Lunde, Per; Helle, Hans B.; Pajchel, J. (1992). "Comparison of full-wave and ray-tracing synthetic seismograms with emphasis on thin-layer resolution". (external link)
• Lunde, Per; Helle, Hans B.; Pajchel, Jan (1992). "A comparison of full-wave and ray-tracing seismograms with emphasis on thin-layer resolution". (external link)
• Hanyga, Andrzej; Helle, Hans B.; Lunde, Per et al. (1991). "Seismic wave simulation in exploration and production". (external link)
• Lunde, Per (1991). "Interference effects in sound fields transmitted at fluid-fluid and fluid-solid interfaces". (external link)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar (1990). "Aspects of transducer modelling". (external link)
• Vestrheim, Magne; Lunde, Per (1989). "Pulse generation using a parametric source". (external link)
• Lunde, Per; Vestrheim, Magne (1989). "The interaction of seismic waves with shallow gas structures". (external link)
• Lunde, Per; Vestrheim, Magne; Lygre, Asle (1989). "Ultrasonic pulse propagation in stratified multiphase media". (external link)
• Vestrheim, Magne; Lunde, Per (1988). "Parametrisk lydkilde. Optimalisering". (external link)
• Lunde, Per (1988). "Årsaker til heliumtaleforvrenging". (external link)
• Vestrheim, Magne; Lunde, Per (1988). "Signalbehandling i parametriske antenner". (external link)
• Vestrheim, Magne; Lunde, Per; Meldahl, Paul (1988). "High resolution shallow seismic surveying using parametric acoustic source technology". (external link)
• Lygre, Asle; Vestrheim, Magne; Lunde, Per et al. (1988). "Numerical simulation of ultrasonic flowmeters". (external link)
• Lunde, Per; Vestrheim, Magne (1988). "Full wave simulation of multilayer reflection coefficients in shallow seismics". (external link)
• Lunde, Per (1987). "Modelling of acoustic transducers". (external link)
• Lunde, Per (1987). "FFP-modelling of seismic / elastic waves in horizontally stratified geologies". (external link)
• Vestrheim, Magne; Lunde, Per (1987). "Simulering av full-bølge lydforplantning i marin seismikk". (external link)
• Berge, Viktor; Lygre, Asle; Lunde, Per et al. (1987). "Simuleringsverktøy for ultralyd væske og gasstrømningsmåling". (external link)
• Lunde, Per; Vestrheim, Magne (1987). "Full bølgje FFP simulering for seismisk gasslommedeteksjon". (external link)
• Lunde, Per; Meldahl, Paul; Vestrheim, Magne (1987). "Full wave elastic modelling for seismic detection of shallow gas". (external link)
• Vestrheim, Magne; Lunde, Per (1987). "Utvikling av akustiske transdusere for gass-strømmåling". (external link)
• Lygre, Asle; Vestrheim, Magne; Lunde, Per et al. (1987). "Numerical simulation of ultrasonic flowmeters". (external link)
• Lunde, Per (1986). "The influence of diving masks on the formant spectrum of normal speech and helium speech". (external link)
• Lunde, Per; Vestrheim, Magne (1986). "Tredimensjonal FFP modellering av elastiske bølgjer i horisontalt stratifiserte media". (external link)
• Lunde, Per (1985). "Acoustic transmission line analysis of formants in hyperbaric helium speech". (external link)
• Lunde, Per (1984). "Formantanalyse av hyperbar heliumtale". (external link)
• Lunde, Per (1984). "Unscrambling of speech in a hyperbaric helium oxygen atmosphere". (external link)
• Lunde, Per; Dalland, Kjell Inge (1984). "Det matematiske og fysiske grunnlaget for datamaskinell taleprosessering". (external link)

Masters thesis

• Økland, Håvard Råheim; Lunde, Per; Sæther, Mathias Myrtveit et al. (2023). Finite element modelling, construction and experimental characterization of piezoelectric transducers for gas. Master thesis. (external link)
• Isaksen, Irene Dahl; Lunde, Per; Sæther, Mathias Myrtveit et al. (2023). Normally incident ultrasonic beam transmission through a water-embedded steel plate as a function of ka-number. Master thesis.. (external link)
• Fjellheim, Mats Johan; Lunde, Per; Kocbach, Jan Martin et al. (2023). Defect detection and acoustic penetration of grout in offshore structures. Master thesis.. (external link)
• Løland, Robert; Lunde, Per; Pedersen, Audun Oppedal et al. (2023). Triangulation method for measurement of fisheries echosounder two-way equivalent beam solid angle, 𝜓. Master thesis.. (external link)
• Trætteberg, Philip; Lunde, Per; Sæther, Mathias Myrtveit et al. (2022). An analysis on material constants estimation for the low characteristic impedance piezoceramic Pz37HD using measurements and FEM modeling. Master thesis. (external link)
• Kristensen, Joachim Gjesdal; Lunde, Per; Rommetveit, Tarjei (2022). Measurement cell for sound speed in liquids: The 3-way pulse method. Master thesis. (external link)
• Fosse, Espen; Lunde, Per; Sæther, Mathias Myrtveit et al. (2022). Finite element modeling and experimental characterization of piezoelectric ceramic disk in air. Master thesis. (external link)
• Benus, Hannah Dyveke Skogheim; Lunde, Per; Rommetveit, Tarjei (2022). Measurement cell for sound speed in liquids: Pulse-echo buffer rod method. Master thesis. (external link)
• Veim, Miranda Ruth; Lunde, Per; Forland, Tonje Nesse et al. (2022). Simulation-based methods of sphere selection for calibration of broadband echosounders in fisheries acoustics. Master thesis. (external link)
• Prøytz, Celine; Lunde, Per; Sæther, Mathias Myrtveit et al. (2022). Underwater ultrasonic transducer technology. Construction, characterization and finite-element modelling. Master thesis. (external link)
• Rong, Maren F.; Lunde, Per; Forland, Tonje Nesse et al. (2022). The application of CW and FM sonar technology to detect a decrease in air in the swim bladder of Atlantic salmon, measurements and modeling. Master thesis . (external link)
• Isabel, Berg; Lunde, Per; Svensson, U. Peter (2021). Uncertainty estimation in sound scattering measurements within an anechoic chamber. Master thesis. (external link)
• Finstad, Sverre Kongsro; Lunde, Per; Sæther, Mathias Myrtveit et al. (2021). Characterization and finite element modelling of piezoelectric ceramic discs vibrating in air, for a frequency range including the first two radial modes. Master thesis. (external link)
• Larsen, Erik; Lunde, Per; Johansen, Tor Arne (2020). "Scholte waves in seabed mapping". Master thesis. (external link)
• Ravndal, Ivar; Lunde, Per; Vestrheim, Magne (2020). Normal incidence ultrasonic beam transmission through steel plates. Measuring and modelling the transmission coefficient. Master thesis. (external link)
• Pedersen, Haiwa; Lunde, Per; Korneliussen, Rolf et al. (2020). Måling av ekvivalent åpningsvinkel for et 38 kHz fiskeriekkolodd. Kalibrering av ekkolodd ved bruk av flere svingere. Master thesis. (external link)
• Grindheim, Renate; Lunde, Per; Vestrheim, Magne (2019). Ultrasonic measurement system for gas. Experimental and theoretical characterization using piezoelectric elements at radial mode vibration in air. Master thesis. (external link)
• Eileraas, Magnus Hammervold; Lunde, Per; Vestrheim, Magne (2019). Lydhastighetsmålinger med og uten resonanseffekter i en viskoelastisk stålplate i vann. Master thesis. (external link)
• Kvist, Adrian; Lunde, Per; Mjølsnes, Svein (2019). "Tid-frekvens-analyse av støy fra kaviterende skipspropeller". Master thesis. (external link)
• Midtbø, Simen Hammervold; Lunde, Per; Vestrheim, Magne et al. (2018). Beam diffraction effects in guided-wave transmission of fluid embedded elastic plate. Influence of receiver distance and finite aperture. Master thesis. (external link)
• Øygard, Sigrid Husebø; Lunde, Per; Pedersen, Geir (2018). Simulations of acoustic transmission loss of Fin whale calls reaching the LoVe Ocean Observatory. Master thesis. (external link)
• Hagen, Andreas; Lunde, Per; Vestrheim, Magne (2017). Ultrasonic measurement systems with diffraction correction for gas: Master thesis. (external link)
• Andersen, Kenneth Kirkeng; Lunde, Per; Vestrheim, Magne et al. (2015). Reciprocity calibration of ultrasonic piezoelectric disks in air. Master thesis. (external link)
• Søvik, Andre Adelsten; Lunde, Per; Vestrheim, Magne (2015). Ultrasonic measurement systems for gas. Finite element modelling compared with measurements in air. Master thesis. (external link)
• Fraga Dias, António Alexandre; Lunde, Per (2013). Construction, modeling and characterization of a piezoelectric ultrasonic and underwater transducer. (Master thesis). (external link)
• Hauge, Rune; Lunde, Per; Vestrheim, Magne et al. (2013). Finite element modeling of ultrasound measurement systems for gas. Comparison with experiments in air. (Master thesis). (external link)
• Mosland, Eivind; Vestrheim, Magne; Lunde, Per et al. (2013). Reciprocity calibration method for ultrasonic piezoelectric transducers in air. (Master thesis). (external link)
• Vatnehol, Sindre Nordlund; Lunde, Per; Ona, Egil (2012). Modellering av det spredte lydfeltet fra en rigid kule med innfallende lydfelt fra en akustisk sylinderarray (Eng.: Modelling of the sound pressure scattered from a rigid sphere, with incident sound field radiated by a cylindrical acoustic array) (Master thesis). (external link)
• Fosså, Henrik; Lunde, Per; Matre, Knut (2011). Ultrasound phantom for myocardium. (Master thesis). (external link)
• Solberg, Marianne; Lunde, Per; Frøysa, Kjell-Eivind (2009). "Absolute sound velocity measurements in liquid using the three-way pulse method" (Master thesis). (external link)
• Lohne, Kjetil Daae; Vestrheim, Magne; Lunde, Per (2005). "Undersøkelse og utnyttelse av svingemoder i ultralyd tranduserkonstruksjon" (Master thesis). (external link)

Doctoral dissertation

• Papathanasiou, Panagiotis; Lunde, Per; Bezdek, Michal et al. (2023). A hybrid numerical method for 3D multiphysics modeling of ultrasonic transit-time flowmeters, including sound propagation in real pipe flows. PhD Thesis.. (external link)
• Sæther, Mathias; Lunde, Per; Ersland, Geir (2018). Elastic wave velocities and attenuation under methane hydrate growth in Bentheim sandstone - Measurements and modelling. PhD Thesis. (external link)
• Storheim, Espen; Lunde, Per; Vestrheim, Magne (2015). Diffraction effects in the ultrasonic field of transmitting and receiving circular piezoceramic disks in radial mode vibration. FE modelling and comparison with measurements in air . (external link)
• Eldevik, Simen; Lunde, Per (2014). Measurement of non-linear acoustoelastic effect in steel using acoustic resonance (PhD thesis). (external link)
• Aanes, Magne; Lunde, Per; Vestrheim, Magne (2014). Interaction of piezoelectric transducer excited ultrasonic pulsed beams with a fluid-embedded viscoelastic plate. Finite element modeling, angular spectrum modeling and measurements (PhD thesis). (external link)
• Norli, Petter; Vestrheim, Magne; Lunde, Per (2007). "Sound velocity cell for gas characterization" (PhD thesis). (external link)
• Pedersen, Audun; Vestrheim, Magne; Lunde, Per (2006). "Effects of nonlinear sound propagation in fisheries research" (PhD thesis). (external link)
• Lunde, Per; Vestrheim, Magne; Kocbach, Jan Martin (2000). "Finite element modelling of ultrasonic piezoelectric transducers. Influence of geometry and material parameters on vibration response functions and radiated field" (Dr. Scient. thesis). (external link)
• Kocbach, Jan; Lunde, Per; Vestrheim, Magne (2000). Finite Element Modeling of Ultrasonic Piezoelectric Transducers. Influence of geometry and material parameters on vibration, response functions and radiated field. (external link)
• Lunde, Per (1987). Analysis and unscrambling of hyperbaric helium speech. (external link)
• Lunde, Per (1986). "Analysis and unscrambling of hyperbaric helium speech. Part I and II" (Dr. Philos. thesis). (external link)

Academic chapter/article/Conference paper

• Pedersen, Audun Oppedal; Lunde, Per; Korneliussen, Rolf et al. (2022). Finite-amplitude sound propagation effects in fish abundance estimation. (external link)

Report

• Carson, Siri Granum; Haugsbø, Elisabet; Ludvigsen, Martin et al. (2021). Blått kompass. Stø kurs mot bærekraft i norske havnæringer. Kapittel 6: Visjonen om det digitale havet – fra et hav av data til bærekraftig ressursforvaltning. (external link)
• Frøysa, Kjell-Eivind; Lunde, Per; Lied, Gaute Øverås (2015). Handbook of uncertainty calculations for ultrasonic oil flow metering stations. Documentation of uncertainty models and internet tool. (external link)
• Lunde, Per; Korneliussen, Rolf (2014). A unifying theory explaining different power budget formulations used in modern scientific echosounders for fish abundance estimation. (external link)
• Lunde, Per; Pedersen, Audun Oppedal; Korneliussen, Rolf et al. (2013). Power-budget and echo-integrator equations for fish abundance estimation. (external link)
• Lunde, Per; Frøysa, Kjell-Eivind (2010). "Ormen Lange ultrasonic gas flow meters. A study for establishment of corrections for pressure and temperature effects. Phase 2". (external link)
• Kocbach, Jan M.; Lunde, Per; Kippersund, Remi andré et al. (2008). "INDSURF project. 3D finite element simulations for a dual frequency band piezocomposite transducer using FEMP". (external link)
• Knappskog, Vidar; Lunde, Per; Kippersund, Remi andré (2008). "Fluenta FGM 130 piezoelectric ultrasonic transducers. Finite element simulations using FEMP". (external link)
• Kippersund, Remi andré; Lunde, Per (2007). "INDSURF project. Dual frequency gas transducer. Preliminary FEMP simulations". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind (2007). "Ormen Lange ultrasonic gas flow meters. A study for establishment of corrections for pressure and temperature effects". (external link)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne et al. (2007). "INDSURF project. Comparison of finite element (FE) and plane wave (Mason) types of simulations for a dual frequency band piezocomposite transducer". (external link)
• Kocbach, Jan M.; Lunde, Per; Kippersund, Remi andré et al. (2007). "INDSURF project. 3D finite element simulations for a dual frequency band piezocomposite transducer using FEMP". (external link)
• Hallanger, Anders; Frøysa, Kjell-Eivind; Lunde, Per (2007). "Fiscal measurement of oil with high water fraction. Phase 1: Sensitivity study for a turbine meter based fiscal metering station". (external link)
• Lunde, Per; Vestrheim, Magne (2007). "Final report for the 2005-06 UoB-CMR "såkorn" project "3D finite element modelling (FEM) of precision non-wetted ultrasonic fiscal flow meters for oil and gas"". (external link)
• Lunde, Per; Dahl, Eivind O.; Halvorsen, Einar (2006). "National strategy for R&D on oil and gas flow measurement technology. A comparison of Norwegian and UK funding systems". (external link)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne et al. (2006). "Finite element modelling of ultrasonic piezoelectric transducers. Extension of FEMP to 3D analysis". (external link)
• Lunde, Per; Kippersund, Remi andré; Heggstad, Stig et al. (2004). "Multipath ultrasonic liquid flow meter. Ultrasonic transducers for prototype light oil flow meter (Phase 2A). Production procedures". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne et al. (2004). "Ultrasonic technology for improved exploitation of petroleum resources. A Strategic Institute Programme (SIP). Status Report 2003". (external link)
• Frøysa, Kjell-Eivind; Lunde, Per (2002). "Multipath ultrasonic liquid flow meter. Integration method for the 6-path prototype. Basis for implementation". (external link)
• Baker, Andrew C.; Lunde, Per (2002). "Nonlinear effects in sound propagation from echo-sounders used in fish abundance estimation. Numerical simulation results". (external link)
• Hallanger, Anders; Lunde, Per (2001). "Sluttrapport. SIP - Gassteknologi 1997-2000". (external link)
• Baker, Andrew C.; Lunde, Per (2001). "Nonlinear propagation from circular echo-sounder transducers. Numerical simulation results". (external link)
• Frøysa, Kjell-Eivind; Lunde, Per (2001). "MPU 600 3-stråle USM. Integrasjonsmetodar for fleirstråle ultralyd strøymingsmåling i våtgass. Teoretisk studie". (external link)
• Lunde, Per (2001). "Wet gas flow metering using multipath transit time flow meters. Sensitivity study". (external link)
• Baker, Andrew C.; Andersen, Morten I.; Frøysa, Kjell-Eivind et al. (2001). "Ultrasound transmission in wet gas. Scattering from mist droplets and measurement of pipe wall film thickness". (external link)
• Baker, Andrew C.; Frøysa, Kjell-Eivind; Furset, Hilde et al. (2001). "Ultrasound transmission in wet gas. Effects of liquid mist and transducer deposits on sound speed and attenuation". (external link)
• Baker, Andrew C.; Andersen, Morten I.; Lunde, Per (2001). "Ultrasound transmission in wet gas. Transducer technology". (external link)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (2000). "Tables of resonance frequencies for disks of PZT-5A, PZT-5H, Pb(ZrTi)O3 and PbTiO3". (external link)
• Andersen, Morten I.; Lunde, Per; Gaeta, Michel (1999). “EUCLID RTP 10.8: Smart Sonar Array. Wet-end demonstrator. User’s Manual”. (external link)
• Andersen, Morten I.; Lunde, Per; Gaeta, Michel (1999). “EUCLID RTP 10.8: Smart Sonar Array. Wet-end demonstrator. Test report”. (external link)
• Lunde, Per; Bø, Reidar; Andersen, Morten I. et al. (1999). “GERG project on ultrasonic flow meters. Phase II - Transducer testing. Part 1: Measurement methods. Part 2: KOS transducers. Part 3: Daniel transducers". (external link)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (1999). "FEMP - Finite element modeling of piezoelectric structures. Theory and verification for piezoceramic disks". (external link)
• Lunde, Per; Vestrheim, Magne (1998). “Precision sound velocity cell for natural gas at high pressures. Phase 1 - Feasibility study”. (external link)
• Frøysa, Kjell-Eivind; Lunde, Per (1998). ”VESUM - Version 1.0. Uncertainty model for velocity of sound measurements for the 6-path FMU 700 ultrasonic gas flow meter". (external link)
• Frøysa, Kjell-Eivind; Hallanger, Anders; Lunde, Per (1998). “K-factor of the Fluenta FGM 100 flare gas meter for the "Valhall/Hod modification" project”. (external link)
• Frøysa, Kjell-Eivind; Hallanger, Anders; Lunde, Per (1998). “K-factor of the Fluenta FGM 100 flare gas meter for the "Laminaria and Corallina development" project”. (external link)
• Lygre, Asle; Lunde, Per; Isaksen, Øyvind (1997). "Wet gas metering. Flow conditions and metering techniques". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (1997). "GARUSO - Version 1.0. Uncertainty model for multipath ultrasonic transit time gas flow meters". (external link)
• Isaksen, Øyvind; Lunde, Per; Frøysa, Kjell-Eivind et al. (1997). "On-line overvåking av olje- og gassprosesser. Vedlegg til NFR sluttrapport (NFR/100986/420)". (external link)
• Lunde, Per; Andersen, Morten I.; Vestrheim, Magne (1997). "EUCLID RTP 10.8 - Smart sonar array. Piezoelectric buzzer for a self calibrating hydrophone system. Work specifications - Rev. 2". (external link)
• Lunde, Per; Andersen, Morten I.; Vestrheim, Magne (1997). "EUCLID RTP 10.8 - Smart sonar array. Piezoelectric buzzer for a self calibrating hydrophone system. Work specifications - Rev. 1". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Nesse, Øyvind et al. (1996). "Wet gas flow metering. Ultrasonic transit time methods. Basic studies. TOP - Online monitoring of oil and gas processes". (external link)
• Lunde, Per; Vestrheim, Magne (1995). "Modelling of loss effects in piezoceramic materials, and adaptation to measurements on radial and thickness modes in thin disks" (Expanded version of paper given at 15th International Congress on Acoustics (ICA '95), Trondheim, Norway, 26-30 June, 1995, Newman, M. (ed.), Volume I, pp. 381-384). (external link)
• Lunde, Per (1995). "FMU 700 - Fiskal måler ultralyd. Akustiske transdusere, Serie 03". (external link)
• Lygre, Asle; Lunde, Per; Frøysa, Kjell-Eivind (1995). "Present status and future research on multi-path ultrasonic gas flow meters". GERG Technical Monograph, TM-8. (external link)
• Lunde, Per; Nesse, Øyvind (1995). "Wet gas measurement. Ultrasonic transducer for thickness measurement of liquid film. TOP - Online monitoring of oil and gas processes". (external link)
• Lygre, Asle; Lunde, Per; Frøysa, Kjell-Eivind (1995). "GERG Project on ultrasonic flow meters". (external link)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (1995). "FMUSIK - Version 1.0. Uncertainty model for the 6-path FMU 700 ultrasonic gas flow meter". (external link)
• Lunde, Per (1994). "Piezoelectric transducer modelling. Radial and thickness modes in poled ferroelectric ceramic disks". (external link)
• Lygre, Asle; Hilland, Jannicke; Frøysa, Kjell-Eivind et al. (1994). "Plandokument 1994. TOP - Strategisk teknologiprogram. Online monitoring of oil and gas processes". (external link)
• Nesse, Øyvind; Lunde, Per (1993). "Separator instrumentation. Preliminary study of ultrasonic interface detection through a separator steel wall. TOP - Online monitoring of oil and gas processes". (external link)
• Lygre, Asle; Ingebrigtsen, Hans; Bø, Reidar et al. (1993). "FMU 700 - Fiskal måler ultralyd. Konstruksjonsunderlag". (external link)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar et al. (1993). "FMU 700 - Fiskal måler ultralyd. Akustiske transdusere". (external link)
• Lunde, Per; Vestrheim, Magne (1992). "FGM 100 fakkelgasssmålar. Verknad av gassparametrar på ultralyd signaltransmisjon". (external link)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar et al. (1991). "Presisjons ultralyd gass-strømningsmåler. Del 2 - Utvikling og konstruksjon. Design av akustiske transdusere i en flerstråle ultralyd gasstrømningsmåler. Arbeidsrapport nr. 2. Vol. I og II". (external link)
• Lunde, Per; Vestrheim, Magne (1991). "Piezoelectric transducer modelling. Thickness mode vibration". (external link)
• Lunde, Per; Vestrheim, Magne (1991). "Piezoelectric transducer modelling. Part 1: Basic equations for poled ferroelectric ceramics". (external link)
• Lunde, Per (1991). "Modellering av seismisk respons i samband med tynn-lags-problematikk i Nordsjøen. Del II". (external link)
• Vestrheim, Magne; Lunde, Per (1990). "Shallow seismics using parametric acoustic sources". (external link)
• Lunde, Per (1990). "Modellering av seismisk respons i samband med tynn-lags-problematikk i Nordsjøen. Bruk av fullbølgjemodellen CAPROS". (external link)
• Lygre, Asle; Lunde, Per (1990). "FGM 100 transdusere - Vurdering av direktivitet. Arbeidsnotat". (external link)
• Vestrheim, Magne; Bø, Reidar; Lunde, Per et al. (1990). "Aluminium elektrolysecelle. Ultralydmåling av sjikttykkelser. Akustisk transmisjon i flytende kryolitt". (external link)
• Vestrheim, Magne; Lunde, Per (1989). "Presisjons ultralyd gass-strømningsmåler. Del 2 - Utvikling og konstruksjon. Rammespesifikasjoner for akustiske transdusere i en flerstråle ultralyd gasstrømningsmåler. Teknisk notat nr. 2.1". (external link)
• Vestrheim, Magne; Lunde, Per (1989). "Shallow gas detection with a parametric seismic source. Phase 1: Feasibility study. Part 2: Technological basis for realization". (external link)
• Vestrheim, Magne; Lunde, Per (1989). "Presisjons ultralyd gass-strømningsmåler. Del 2 - Utvikling og konstruksjon. Numeriske simuleringer av akustiske transdusere for en flerstråle ultralyd gasstrømningsmåler. Teknisk notat nr. 2.2". (external link)
• Vestrheim, Magne; Bø, Reidar; Lunde, Per et al. (1989). "Aluminium elektrolysecelle. Ultralydmålinger av sjikttykkelser. Forprosjekt". (external link)
• Jakobsen, J.; Palmstrøm, Robert; Lunde, Per et al. (1989). "Permanent multilayer well monitoring. A study of a down-hole instrumentation system for oil and gas production wells". (external link)
• Lunde, Per (1989). "CAPROS version 2.0. Full wave elastic modelling for shallow gas identification". (external link)
• Lunde, Per; Vestrheim, Magne (1988). "Full wave simulation of multilayer reflection coefficients in shallow seismics" (Expanded version of paper given at XI Scandinavian Cooperation Meeting in Acoustics / Hydrodynamics, Ustaoset, January 31 - February 3, 1988). (external link)
• Lygre, Asle; Lunde, Per; Bø, Reidar et al. (1988). "High precision ultrasonic flowmeter. Sensitivity study. Volume II". (external link)
• Vestrheim, Magne; Lunde, Per (1988). "Shallow gas detection with a parametric seismic source. Phase I: Feasibility study. Part 1". (external link)
• Lygre, Asle; Lunde, Per; Bø, Reidar et al. (1988). "High precision ultrasonic flowmeter. Sensitivity study. Volume I". (external link)
• Lunde, Per; Meldahl, Paul; Vestrheim, Magne (1987). "Full wave elastic modelling for seismic detection of shallow gas". (Expanded version of paper given at 49th Meeting and Technical Exhibition for the European Association of Exploration Geophysicists (EAEG'87), Belgrade, Yugoslavia, June 9-12, 1987). (external link)
• Lunde, Per (1986). "Sound propagation from a seismic source array", Lecture series given at the University of Bergen, Dept. of Mathematics, May 1986 (Compilation of viewgraphs). (external link)
• Lunde, Per; Vestrheim, Magne (1986). "Simuleringsprogrammet CAPROS Versjon 1.0. Programvaredokumentasjon". (external link)
• Vestrheim, Magne; Lygre, Asle; Bø, Reidar et al. (1986). "High precision ultrasonic gas flowmeters. Feasibility study". (external link)
• Lunde, Per; Vestrheim, Magne (1986). "Simuleringsprogrammet CAPROS Versjon 1.0. Brukarinstruksjon". (external link)
• Lunde, Per; Vestrheim, Magne (1986). "Lydforplantning fra seismisk kildearray. Simuleringsmodellen CAPROS". (external link)
• Lunde, Per (1985). "Helium speech unscrambling". (external link)
• Lundblad, Jan Åke; Dalland, Kjell Inge; Andersen, Knut et al. (1985). "OTP diver communication project Obtained results and further development". (external link)
• Lunde, Per (1983). "Software documentation of the NUTEC experimental unscrambler". (external link)
• Andersen, Knut; Dalland, Kjell Inge; Lunde, Per (1983). "Communication evaluation during a 350 msw operational dive". (external link)

Other product

• Kippersund, Remi André; Husebø, Magne; Lunde, Per et al. (2020). "Sensor apparatus and method for measuring flow", US Patent Application No. US 2020/0132527 A1; filed Dec. 24, 2019; publ. date April 30, 2020; 47 p.. (external link)
• Kippersund, Remi andré; Husebø, Magne; Lunde, Per et al. (2020). "Sensor apparatus and method for measuring flow”, US patent No. US 10,557,731 B2; filed 2014-12-29, granted 2020.02.11; 48 p.. (external link)
• Kippersund, Remi André; Husebø, Magne; Lunde, Per et al. (2019). "Sensor apparatus”, US patent No. US 10,317,262 B2; filed Dec. 29, 2014, granted 2019.06.11. 35 p.. (external link)
• Frøysa, Kjell-Eivind; Kippersund, Remi andré; Lunde, Per (2012). "Stømningsmåleapparat", Norwegian Patent No. 331687, filed 2009.12.22, public available 2011.06.24, granted 2012.02.20. 43 p. . (external link)
• Kippersund, Remi andré; Frøysa, Kjell-Eivind; Lunde, Per (2012). "Flow measuring apparatus. Ultrasonic flow measurement based on propagating time of Lamb waves", UK patent GB2479115, filed 2009.12.22, granted 2012.03.07. . (external link)
• Kippersund, Remi andré; Frøysa, Kjell-Eivind; Lunde, Per (2012). "Flow measuring apparatus", US patent No. US 8,141,434 B2, filed 2010.05.07, granted 2012.03.27. 21 p.. (external link)

Lecture

• Ravndal, Ivar; Lunde, Per; Vestrheim, Magne (2020). Thickness resonances and dispersion properties of leaky Lamb modes in a steel plate. (external link)

Popular scientific lecture

• Lunde, Per (2020). SFI Smart Ocean - Flexible and cost-effective monitoring for management of a productive and healthy ocean. (external link)
• Lunde, Per (2020). Acoustics - Sensing the invisible. (external link)
• Lunde, Per (2011). Acoustics, some perspectives. (external link)
• Lunde, Per (2009). "Acoustics in the Bergen region". (external link)
• Lunde, Per (2009). "Bergen Acoustics – Quo vadis?". (external link)
• Lunde, Per (2004). "Bruk av ultralyd til nye måleprosessar". (external link)

Interview

• Lunde, Ådne; Lunde, Per; Graves, Inger (2020). Forskarar i Bergen vil bli først med trådlaust internett under vatn . (external link)
• Ådnanes, Jens Helleland; Lunde, Per (2020). Slik vil de lage et smartere hav. (external link)

Poster

• Eldevik, Simen; Prieur, Fabrice Jean Gabriel; Lunde, Per (2013). Measuring stress-state of gas pipelines (Poster presentation). (external link)
• Storheim, Espen; Lunde, Per; Vestrheim, Magne (2011). Diffraction correction for precision measurements of sound velocity in gas. Use of an alternative method for non-uniform piezoelectric transmitting transducer vibration (Poster). (external link)
• Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). Ikkelineær lydforplantning ved bruk av ekkolodd i firskeriforvaltning. (external link)
• Norli, Petter; Lunde, Per; Vestrheim, Magne (2005). "Investigation of precision sound velocity measurement methods as reference for ultrasonic gas flow meters". (external link)
• Bjelland, Cato; Lunde, Per; Kippersund, Remi andré (2005). "Making downhole sensors available at high temperatures". (external link)
• Frøysa, Kjell-Eivind; Lunde, Per (2005). "Integration methods in ultrasonic flow meters for gas and liquid". (external link)

Abstract

• Hjertaas, Johannes Just; Fosså, Henrik; Dybdahl, Grete Lunestad et al. (2011). Accuracy of real-time single and multi beat 3D speckle tracking echocardiography in vitro. (external link)
• Heggelund, Geir; Rasmussen, knut; Lunde, Per et al. (2010). Prognostic significance of mitral flow derived Doppler indices in a general population with normal systolic function: A prospective population-based chort study. The Tromso Study 1994-2009. (external link)

Article in business/trade/industry journal

• Lunde, Per (2010). Fiskalmåling av olje og gass; - Utfordringer og muligheter med ultralydteknologi. (external link)

Non-fiction book

• Dahl, Eivind O.; Frøysa, Kjell-Eivind; Lunde, Per (2003). "Handbook of uncertainty calculations. Fiscal orifice gas and turbine oil metering stations" Handbook prepared on behalf of the Norwegian Society for Oil and Gas Measurement (NFOGM), Norwegian Petroleum Directorate (NPD) & Norwegian Society of Chartered Engineers (NIF)(May 2003). (external link)

Academic monograph

• Lunde, Per; Frøysa, Kjell-Eivind (2001). "Handbook of uncertainty calculations. Ultrasonic fiscal gas metering stations". Handbook prepared on behalf of the Norwegian Society of Oil and Gas Measurement (NFOGM) and the Norwegian Petroleum Directorate (NPD). (external link)

Academic anthology/Conference proceedings

• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (2000). "GERG project on ultrasonic gas flow meters, Phase II. GERG Technical Monograph TM11. Groupe Européen de Recherches Gazières". (external link)

Thesis at a second degree level

• Kocbach, Jan M.; Vestrheim, Magne; Lunde, Per (1997). "Endelig element modellering av piezoelektriske skiver" (Cand. Scient. thesis). (external link)
• Bjørndal, Erlend; Vestrheim, Magne; Lunde, Per (1994). "Utnyttelse av resonansmodi i ultralyd transduserkonstruksjonar" (Cand. Scient. thesis). (external link)
• Jordal, Lars; Hammer, Erling A.; Lunde, Per (1991). "Modellering av piezoelektriske krystallers vibrasjonsmoder basert på admittansmåling" (Cand. Scient. Thesis). (external link)
• Lunde, Per (1982). "Om parabolsk modell i ikkje-lineær akustikk" (Cand. Real. thesis). (external link)

See a complete overview of publications in Cristin.