Mastergradsoppgave

• 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. (ekstern lenke)
• 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.. (ekstern lenke)
• Fosse, Espen; Lunde, Per; Sæther, Mathias Myrtveit et al. (2022). Finite element modeling and experimental characterization of piezoelectric ceramic disk in air. Master thesis. (ekstern lenke)
• Prøytz, Celine; Lunde, Per; Sæther, Mathias Myrtveit et al. (2022). Underwater ultrasonic transducer technology. Construction, characterization and finite-element modelling. Master thesis. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• Ravndal, Ivar; Lunde, Per; Vestrheim, Magne (2020). Normal incidence ultrasonic beam transmission through steel plates. Measuring and modelling the transmission coefficient. Master thesis. (ekstern lenke)
• Eileraas, Magnus Hammervold; Lunde, Per; Vestrheim, Magne (2019). Lydhastighetsmålinger med og uten resonanseffekter i en viskoelastisk stålplate i vann. Master thesis. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• Hagen, Andreas; Lunde, Per; Vestrheim, Magne (2017). Ultrasonic measurement systems with diffraction correction for gas: Master thesis. (ekstern lenke)
• Søvik, Andre Adelsten; Lunde, Per; Vestrheim, Magne (2015). Ultrasonic measurement systems for gas. Finite element modelling compared with measurements in air. Master thesis. (ekstern lenke)
• Andersen, Kenneth Kirkeng; Lunde, Per; Vestrheim, Magne et al. (2015). Reciprocity calibration of ultrasonic piezoelectric disks in air. Master thesis. (ekstern lenke)
• Mosland, Eivind; Vestrheim, Magne; Lunde, Per et al. (2013). Reciprocity calibration method for ultrasonic piezoelectric transducers in air. (Master thesis). (ekstern lenke)
• 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). (ekstern lenke)
• Oma, Odd Sverre; Vestrheim, Magne (2009). Bestemmelse av egenskaper til piezoelektriske skiver med lavt diameter/tykkelse forhold. (ekstern lenke)
• Aanes, Magne; Vestrheim, Magne (2009). Undersøkelser av piezokeramiske skiver. Målinger og endelig element analyser. (ekstern lenke)
• Knappskog, Vidar; Vestrheim, Magne (2007). Radiellmode Svingninger i Piezoelektriske Ultralydtransdusere for Luft. Målinger og Endelig Element Analyser. (ekstern lenke)
• Lohne, Kjetil Daae; Vestrheim, Magne; Lunde, Per (2005). "Undersøkelse og utnyttelse av svingemoder i ultralyd tranduserkonstruksjon" (Master thesis). (ekstern lenke)
• Kocbach, Jan M.; Vestrheim, Magne; Lunde, Per (1997). "Endelig element modellering av piezoelektriske skiver" (Cand. Scient. thesis). (ekstern lenke)
• Bjørndal, Erlend; Vestrheim, Magne; Lunde, Per (1994). "Utnyttelse av resonansmodi i ultralyd transduserkonstruksjonar" (Cand. Scient. thesis). (ekstern lenke)

Vitenskapelig foredrag

• Solberg, Marianne; Lunde, Per; Vestrheim, Magne (2022). Energy-flux density in real-, imaginary-, and complex-valued branches of Lamb modes in an isotropic plate. (ekstern lenke)
• Sæther, Mathias Myrtveit; Lunde, Per; Vestrheim, Magne (2022). Ultrasonic beam transmission through a water-immersed steel plate in the vicinity of the ZGV angle. (ekstern lenke)
• 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?. (ekstern lenke)
• 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. (ekstern lenke)
• Solberg, Marianne; Aanes, Magne; Lunde, Per et al. (2021). Complex dispersion properties of lossy and leaky Lamb modes related to Poisson's ratio. (ekstern lenke)
• Sæther, Mathias; Midtbø, Simen Hammervold; Lunde, Per et al. (2020). Nearfield effects from leaky Lamb modes in a steel plate for normal beam incidence. (ekstern lenke)
• Solberg, Marianne; Aanes, Magne; Lunde, Per et al. (2020). Complex dispersion properties of Lamb modes vs. Poisson’s ratio. (ekstern lenke)
• 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. (ekstern lenke)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2018). Transmission through an isotropic viscoelastic water-coupled plate using a transmit-receive transducer system. (ekstern lenke)
• Midtbø, Simen Hammervold; Aanes, Magne; Lunde, Per et al. (2018). Comparison of angular spectrum models for baffled piston sound field with finite receiver apertures. (ekstern lenke)
• 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. (ekstern lenke)
• Aanes, Magne; Lohne, Kjetil Daae; Lunde, Per et al. (2017). Dispersion properties of Lamb and leaky Lamb modes in elastic and viscoelastic plates. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• 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”. (ekstern lenke)
• 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". (ekstern lenke)
• 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". (ekstern lenke)
• 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. (ekstern lenke)
• Mosland, Eivind; Hauge, Rune; Storheim, Espen et al. (2013). "Reciprocity calibration method for ultrasonic piezoelectric transducers in air”. (ekstern lenke)
• Hauge, Rune; Mosland, Eivind; Storheim, Espen et al. (2013). "Finite element modeling of ultrasound measurement systems for gas. System model compared to measurements”. (ekstern lenke)
• 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”. (ekstern lenke)
• Aanes, Magne; Lunde, Per; Vestrheim, Magne (2013). "Interaction of a transducer excited ultrasonic beam with an elastic plate. 3D modeling in comparison with experiments”. (ekstern lenke)
• Lunde, Per; Vestrheim, Magne; Storheim, Espen et al. (2013). "Industrial ultrasound research at UiB/IFT. From gas flow measurement to structural monitoring". (ekstern lenke)
• Aanes, Magne; Lunde, Per; Vestrheim, Magne (2013). Ultrasonic beam transmission through a steel plate at oblique incidence: Uniform piston vs. piezoelectric transducer. (ekstern lenke)
• Mosland, Eivind; Hauge, Rune; Storheim, Espen et al. (2013). Reciprocity calibration method for ultrasonic, piezoelectric transducers in air, including finite element simulations. (ekstern lenke)
• 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". (ekstern lenke)
• 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”. (ekstern lenke)
• 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. (ekstern lenke)
• Storheim, Espen; Lunde, Per; Vestrheim, Magne (2011). Diffraction correction in ultrasonic fields for measurements of sound velocity in gas. Conventional and alternative methods. (ekstern lenke)
• 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. (ekstern lenke)
• Amundsen, Ørnulf Svan; Aanes, Magne; Kocbach, Jan et al. (2011). 'Generalized Permittivity' and Source Sensitivity of Piezoelectric Ceramic Disks. (ekstern lenke)
• Aanes, Magne; Kocbach, Jan; Vestrheim, Magne (2010). Modal and direct harmonic solution methods in FE modeling of piezoceramic disks. (ekstern lenke)
• Storheim, Espen; Aanes, Magne; Vestrheim, Magne et al. (2010). "Ultrasonic piezoceramic transducers for air, - finite element analysis and measurements". (ekstern lenke)
• Aanes, Magne; Storheim, Espen; Vestrheim, Magne et al. (2010). "Finite element analysis and measurement of ultrasonic piezoceramic transducers in air and water". (ekstern lenke)
• Pedersen, Audun Oppedal; Lunde, Per; Korneliussen, Rolf et al. (2009). "Nonlinear sound propagation fisheries research echo" sounders (abstract). (ekstern lenke)
• Aanes, Magne; Vestrheim, Magne (2009). Finite Element Studies of Permittivity Constants in Piezoceramic Disks. (ekstern lenke)
• Lohne, Kjetil Daae; Vestrheim, Magne; Lunde, Per (2008). "Ultrasonic signal transmission in plates. Study of a steel plate immersed in water". (ekstern lenke)
• Pedersen, Audun Oppedal; Lunde, Per; Korneliussen, Rolf et al. (2008). "Nonlinear sound propagation fisheries research echo sounders". (ekstern lenke)
• Smørgrav, Skule; Abrahamsen, Atle k.; Lunde, Per et al. (2007). Developments in transducer technology and reciprocity in ultrasonic flow meters. (ekstern lenke)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar et al. (2007). "Reciprocal operation of ultrasonic flow meters: Criteria and applications". (ekstern lenke)
• 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". (ekstern lenke)
• Smørgrav, Skule; Abrahamsen, Atle k.; Lunde, Per et al. (2006). "Developments in transducer technology and reciprocity in ultrasonic flow meters". (ekstern lenke)
• Smørgrav, Skule; Abrahamsen, Atle k.; Lunde, Per et al. (2006). "Developments in transducer technology and reciprocity in ultrasonic flow meters". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar (2006). "Reciprocity in electroacoustic measurement systems, and reciprocal operation: Principles and applications to ultrasonic flow metering". (ekstern lenke)
• Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). Consequences of non-linear sound propagation on target strength measurements - preliminary studies. (ekstern lenke)
• Pedersen, Audun Oppedal; Lunde, Per; Vestrheim, Magne (2005). "Nonlinear effects in fisheries and research echo sounders and sonars". (ekstern lenke)
• Norli, Petter; Lunde, Per; Vestrheim, Magne (2005). "Investigation of precision sound velocity measurements as reference for ultrasonic gas flow meters". (ekstern lenke)
• Lunde, Per; Kippersund, Remi André; Vestrheim, Magne et al. (2005). "Finite element modeling of sound propagation from a piezoelectric transducer through an elastic layer". (ekstern lenke)
• 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". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar et al. (2005). "Reciprocity and its utilization in ultrasonic flow meters". (ekstern lenke)
• Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). "Nonlinear sound propagation effects in fisheries research echo sounders - Measurements and simulations in fresh water". (ekstern lenke)
• Tichy, Frank; Solli, H.; Klaveness, H. et al. (2005). "Nonlinear effects in a 200 kHz sound beam". (ekstern lenke)
• Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). "Quantification of nonlinear sound propagation effects in fisheries research echo sounders". (ekstern lenke)
• Lunde, Per; Kippersund, Remi andré; Vestrheim, Magne et al. (2004). "Transient diffraction effects in piezoelectric ultrasonic transducers using finite element modelling". (ekstern lenke)
• Kippersund, Remi andré; Lunde, Per; Vestrheim, Magne (2004). "Finite element modelling of piezoelectric ultrasonic transducer properties in natural gas". (ekstern lenke)
• Norli, Petter; Lunde, Per; Vestrheim, Magne (2004). "Methods for precision sound velocity measurements in pressure cells for gas characterization". (ekstern lenke)
• Pedersen, Audun Oppedal; Lunde, Per; Vestrheim, Magne (2004). "Convergence and accuracy of the Bergen Code for investigating nonlinear effects in fishery echo sounders". (ekstern lenke)
• 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". (ekstern lenke)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (2003). "Transient diffraction effects in ultrasonic flow meters for gas and liquid". (ekstern lenke)
• Lunde, Per; Kippersund, Remi andré; Vestrheim, Magne (2003). "Signal modelling using the FLOSIM system model in ultrasonic instrumentation for industrial applications". (ekstern lenke)
• Vestrheim, Magne; Lunde, Per; Fardal, Rune (2002). "Endelig element modellering av piezoelektriske transduser vibrasjoner". (ekstern lenke)
• 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". (ekstern lenke)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (2000). "Challenges for improved accuracy and traceability in ultrasonic fiscal flow metering". (ekstern lenke)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (2000). "Finite element modeling of piezoceramic disks including radiation into a fluid medium". (ekstern lenke)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (2000). "Challenges for improved accuracy and traceability in ultrasonic fiscal flow metering of natural gas". (ekstern lenke)
• Furset, Hilde; Lunde, Per; Vestrheim, Magne et al. (1999). “Investigation of acoustic properties in wet gas for ultrasonic flowmetering”. (ekstern lenke)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (1999). "FE simulations of piezoceramic disks with a front layer of varying thickness". (ekstern lenke)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne et al. (1998). “Piezoelectric disks with a front layer. Comparisons of FEM with experimental data”. (ekstern lenke)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (1997). "FEM analysis of piezoelectric disks - Method and testing". (ekstern lenke)
• Vestrheim, Magne; Vervik, Steinar (1996). Transit time determination in a measurement system, with effects of transducers. (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1995). "Modelling of loss effects in piezoceramic materials, and adaptation to measurements on radial and thickness modes in thin disks". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1994). "Comparison of models for radial and thickness modes in piezoceramic disks". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar (1990). "Aspects of transducer modelling". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne; Lygre, Asle (1989). "Ultrasonic pulse propagation in stratified multiphase media". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1989). "The interaction of seismic waves with shallow gas structures". (ekstern lenke)
• Vestrheim, Magne; Lunde, Per (1989). "Pulse generation using a parametric source". (ekstern lenke)
• Vestrheim, Magne; Lunde, Per; Meldahl, Paul (1988). "High resolution shallow seismic surveying using parametric acoustic source technology". (ekstern lenke)
• Vestrheim, Magne; Lunde, Per (1988). "Signalbehandling i parametriske antenner". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1988). "Full wave simulation of multilayer reflection coefficients in shallow seismics". (ekstern lenke)
• Lygre, Asle; Vestrheim, Magne; Lunde, Per et al. (1988). "Numerical simulation of ultrasonic flowmeters". (ekstern lenke)
• Vestrheim, Magne; Lunde, Per (1988). "Parametrisk lydkilde. Optimalisering". (ekstern lenke)
• Vestrheim, Magne; Lunde, Per (1987). "Utvikling av akustiske transdusere for gass-strømmåling". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1987). "Full bølgje FFP simulering for seismisk gasslommedeteksjon". (ekstern lenke)
• Lunde, Per; Meldahl, Paul; Vestrheim, Magne (1987). "Full wave elastic modelling for seismic detection of shallow gas". (ekstern lenke)
• Lygre, Asle; Vestrheim, Magne; Lunde, Per et al. (1987). "Numerical simulation of ultrasonic flowmeters". (ekstern lenke)
• Berge, Viktor; Lygre, Asle; Lunde, Per et al. (1987). "Simuleringsverktøy for ultralyd væske og gasstrømningsmåling". (ekstern lenke)
• Vestrheim, Magne; Lunde, Per (1987). "Simulering av full-bølge lydforplantning i marin seismikk". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1986). "Tredimensjonal FFP modellering av elastiske bølgjer i horisontalt stratifiserte media". (ekstern lenke)

Faglig foredrag

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

Vitenskapelig artikkel

• Øyerhamn, Rune; Mosland, Eivind Nag; Storheim, Espen et al. (2018). Finite element modeling of ultrasound measurement systems for gas. Comparison with experiments in air. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• 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. (ekstern lenke)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (2001). "Resonance frequency spectra with convergence tests for piezoceramic disks using the finite element method". (ekstern lenke)

Doktorgradsavhandling

• 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. (ekstern lenke)
• 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). (ekstern lenke)
• Bjørndal, Erlend; Vestrheim, Magne; Frøysa, Kjell-Eivind (2007). Acoustic measurement of liquid density with applications for mass measurement of oil. (ekstern lenke)
• Norli, Petter; Vestrheim, Magne; Lunde, Per (2007). "Sound velocity cell for gas characterization" (PhD thesis). (ekstern lenke)
• Pedersen, Audun; Vestrheim, Magne; Lunde, Per (2006). "Effects of nonlinear sound propagation in fisheries research" (PhD thesis). (ekstern lenke)
• 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. (ekstern lenke)
• 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). (ekstern lenke)

Poster

• 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). (ekstern lenke)
• Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). Ikkelineær lydforplantning ved bruk av ekkolodd i firskeriforvaltning. (ekstern lenke)
• Norli, Petter; Lunde, Per; Vestrheim, Magne (2005). "Investigation of precision sound velocity measurement methods as reference for ultrasonic gas flow meters". (ekstern lenke)

Rapport

• 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". (ekstern lenke)
• 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". (ekstern lenke)
• 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". (ekstern lenke)
• 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"". (ekstern lenke)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne et al. (2006). "Finite element modelling of ultrasonic piezoelectric transducers. Extension of FEMP to 3D analysis". (ekstern lenke)
• 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". (ekstern lenke)
• 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". (ekstern lenke)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (2000). "Tables of resonance frequencies for disks of PZT-5A, PZT-5H, Pb(ZrTi)O3 and PbTiO3". (ekstern lenke)
• Kocbach, Jan M.; Lunde, Per; Vestrheim, Magne (1999). "FEMP - Finite element modeling of piezoelectric structures. Theory and verification for piezoceramic disks". (ekstern lenke)
• 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". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1998). “Precision sound velocity cell for natural gas at high pressures. Phase 1 - Feasibility study”. (ekstern lenke)
• 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". (ekstern lenke)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (1997). "GARUSO - Version 1.0. Uncertainty model for multipath ultrasonic transit time gas flow meters". (ekstern lenke)
• 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". (ekstern lenke)
• 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". (ekstern lenke)
• Hobæk, Halvor; Vestrheim, Magne (1996). Proceedings of the 19th Scandinavian symposium on physical acoustics. (ekstern lenke)
• Lunde, P.; Frøysa, K.-E.; Vestrheim, Magne et al. (1996). Wet gas flow metering. Ultrasonic transit time methods. Basic studies. (ekstern lenke)
• Lunde, Per; Frøysa, Kjell-Eivind; Vestrheim, Magne (1995). "FMUSIK - Version 1.0. Uncertainty model for the 6-path FMU 700 ultrasonic gas flow meter". (ekstern lenke)
• 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). (ekstern lenke)
• Lunde, Per; Vestrheim, Magne; Bø, Reidar et al. (1993). "FMU 700 - Fiskal måler ultralyd. Akustiske transdusere". (ekstern lenke)
• Lygre, Asle; Ingebrigtsen, Hans; Bø, Reidar et al. (1993). "FMU 700 - Fiskal måler ultralyd. Konstruksjonsunderlag". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1992). "FGM 100 fakkelgasssmålar. Verknad av gassparametrar på ultralyd signaltransmisjon". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1991). "Piezoelectric transducer modelling. Thickness mode vibration". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1991). "Piezoelectric transducer modelling. Part 1: Basic equations for poled ferroelectric ceramics". (ekstern lenke)
• 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". (ekstern lenke)
• Vestrheim, Magne; Lunde, Per (1990). "Shallow seismics using parametric acoustic sources". (ekstern lenke)
• Vestrheim, Magne; Bø, Reidar; Lunde, Per et al. (1990). "Aluminium elektrolysecelle. Ultralydmåling av sjikttykkelser. Akustisk transmisjon i flytende kryolitt". (ekstern lenke)
• Vestrheim, Magne; Bø, Reidar; Lunde, Per et al. (1989). "Aluminium elektrolysecelle. Ultralydmålinger av sjikttykkelser. Forprosjekt". (ekstern lenke)
• 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". (ekstern lenke)
• 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". (ekstern lenke)
• Vestrheim, Magne; Lunde, Per (1989). "Shallow gas detection with a parametric seismic source. Phase 1: Feasibility study. Part 2: Technological basis for realization". (ekstern lenke)
• 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". (ekstern lenke)
• 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). (ekstern lenke)
• Lygre, Asle; Lunde, Per; Bø, Reidar et al. (1988). "High precision ultrasonic flowmeter. Sensitivity study. Volume II". (ekstern lenke)
• Vestrheim, Magne; Lunde, Per (1988). "Shallow gas detection with a parametric seismic source. Phase I: Feasibility study. Part 1". (ekstern lenke)
• Lygre, Asle; Lunde, Per; Bø, Reidar et al. (1988). "High precision ultrasonic flowmeter. Sensitivity study. Volume I". (ekstern lenke)
• 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). (ekstern lenke)
• Vestrheim, Magne; Lygre, Asle; Bø, Reidar et al. (1986). "High precision ultrasonic gas flowmeters. Feasibility study". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1986). "Simuleringsprogrammet CAPROS Versjon 1.0. Programvaredokumentasjon". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1986). "Simuleringsprogrammet CAPROS Versjon 1.0. Brukarinstruksjon". (ekstern lenke)
• Lunde, Per; Vestrheim, Magne (1986). "Lydforplantning fra seismisk kildearray. Simuleringsmodellen CAPROS". (ekstern lenke)

Vitenskapelig antologi/Konferanseserie

• 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". (ekstern lenke)

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