Conference lecture

• Audun Oppedal Pedersen; Per Lunde; Rolf Korneliussen et al. (2009). "Nonlinear sound propagation fisheries research echo" sounders (abstract). (external link)
• Kjetil Daae Lohne; Magne Vestrheim; Per Lunde (2008). "Ultrasonic signal transmission in plates. Study of a steel plate immersed in water". (external link)
• Magne Aanes; Magne Vestrheim (2009). Finite Element Studies of Permittivity Constants in Piezoceramic Disks. (external link)
• Per Lunde; Magne Vestrheim (1989). "The interaction of seismic waves with shallow gas structures". (external link)
• Espen Storheim; Per Lunde; Magne Vestrheim (2017). Sound field radiation from a non-uniformly vibrating baffled and circular piezoelectric ceramic disk in radial mode vibration. (external link)
• Eivind Mosland; Rune Hauge; Espen Storheim et al. (2013). "Reciprocity calibration method for ultrasonic piezoelectric transducers in air”. (external link)
• Magne Aanes; Per Lunde; Magne Vestrheim (2013). "Interaction of a transducer excited ultrasonic beam with an elastic plate. 3D modeling in comparison with experiments”. (external link)
• Per Lunde; Magne Vestrheim; Espen Storheim et al. (2013). "Industrial ultrasound research at UiB/IFT. From gas flow measurement to structural monitoring". (external link)
• Audun Oppedal Pedersen; Per Lunde; Rolf Korneliussen et al. (2008). "Nonlinear sound propagation fisheries research echo sounders". (external link)
• Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim (2000). "Challenges for improved accuracy and traceability in ultrasonic fiscal flow metering of natural gas". (external link)
• Magne Vestrheim; Steinar Vervik (1996). Transit time determination in a measurement system, with effects of transducers. (external link)
• Magne Aanes; Kjetil Daae Lohne; Espen Storheim et al. (2015). "Beam transmission of water-embedded steel plate at normal incidence. Diffraction effects in the S1 to A3 region”. (external link)
• Per Lunde; Magne Vestrheim; Reidar Bø (2006). "Reciprocity in electroacoustic measurement systems, and reciprocal operation: Principles and applications to ultrasonic flow metering". (external link)
• Andre Adelsten Søvik; Kenneth Kirkeng Andersen; Per Lunde et al. (2015). "Characterization of ultrasound transmit-receive measurement systems in air. Comparison of finite element modelling and experimental measurements". (external link)
• Per Lunde; Remi andré Kippersund; Magne Vestrheim et al. (2004). "Transient diffraction effects in piezoelectric ultrasonic transducers using finite element modelling". (external link)
• Remi andré Kippersund; Per Lunde; Magne Vestrheim (2004). "Finite element modelling of piezoelectric ultrasonic transducer properties in natural gas". (external link)
• Petter Norli; Per Lunde; Magne Vestrheim (2004). "Methods for precision sound velocity measurements in pressure cells for gas characterization". (external link)
• Per Lunde; Remi andré Kippersund; Magne Vestrheim (2003). "Signal modelling using the FLOSIM system model in ultrasonic instrumentation for industrial applications". (external link)
• Magne Aanes; Per Lunde; Magne Vestrheim (2013). Ultrasonic beam transmission through a steel plate at oblique incidence: Uniform piston vs. piezoelectric transducer. (external link)
• Kjetil Daae Lohne; Magne Aanes; Per Lunde et al. (2017). Finite aperture effects in the backward wave propagation region of a leaky Lamb mode at normal beam incidence. (external link)
• Audun Oppedal Pedersen; Magne Vestrheim; Per Lunde (2005). "Nonlinear sound propagation effects in fisheries research echo sounders - Measurements and simulations in fresh water". (external link)
• Simen Hammervold Midtbø; Magne Aanes; Per Lunde et al. (2018). Comparison of angular spectrum models for baffled piston sound field with finite receiver apertures. (external link)
• Magne Aanes; Jan Kocbach; Magne Vestrheim (2010). Modal and direct harmonic solution methods in FE modeling of piezoceramic disks. (external link)
• Audun Oppedal Pedersen; Per Lunde; Magne Vestrheim (2005). "Nonlinear effects in fisheries and research echo sounders and sonars". (external link)
• Petter Norli; Per Lunde; Magne Vestrheim (2005). "Investigation of precision sound velocity measurements as reference for ultrasonic gas flow meters". (external link)
• Kjetil Daae Lohne; Per Lunde; Magne Vestrheim (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)
• Espen Storheim; Magne Aanes; Magne Vestrheim et al. (2010). "Ultrasonic piezoceramic transducers for air, - finite element analysis and measurements". (external link)
• Magne Aanes; Kjetil Daae Lohne; Per Lunde 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)
• Magne Vestrheim; Per Lunde; Paul Meldahl (1988). "High resolution shallow seismic surveying using parametric acoustic source technology". (external link)
• Eivind Nag Mosland; Espen Storheim; Per Lunde et al. (2021). Diffraction correction for precision measurements of sound velocity in gas. Is full receiver modelling needed?. (external link)
• Rune Hauge; Eivind Mosland; Espen Storheim et al. (2013). "Finite element modeling of ultrasound measurement systems for gas. System model compared to measurements”. (external link)
• Magne Vestrheim; Per Lunde (1988). "Parametrisk lydkilde. Optimalisering". (external link)
• Jan M. Kocbach; Per Lunde; Magne Vestrheim (1999). "FE simulations of piezoceramic disks with a front layer of varying thickness". (external link)
• Magne Vestrheim; Per Lunde (1989). "Pulse generation using a parametric source". (external link)
• Per Lunde; Remi André Kippersund; Magne Vestrheim et al. (2005). "Finite element modeling of sound propagation from a piezoelectric transducer through an elastic layer". (external link)
• Kjetil Daae Lohne; Magne Vestrheim; Per Lunde (2005). "Electrical and acoustical response of of a Pz27 piezoelectric ceramic element in air. Finite element analyses and experimental results". (external link)
• Skule Smørgrav; Atle k. Abrahamsen; Per Lunde et al. (2006). "Developments in transducer technology and reciprocity in ultrasonic flow meters". (external link)
• Skule Smørgrav; Atle k. Abrahamsen; Per Lunde et al. (2007). Developments in transducer technology and reciprocity in ultrasonic flow meters. (external link)
• Magne Aanes; Kjetil Daae Lohne; Per Lunde 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)
• Espen Storheim; Per Lunde; Magne Vestrheim (2011). Diffraction correction in ultrasonic fields for measurements of sound velocity in gas. Conventional and alternative methods. (external link)
• Magne Vestrheim; Per Lunde (1988). "Signalbehandling i parametriske antenner". (external link)
• Per Lunde; Magne Vestrheim; Asle Lygre (1989). "Ultrasonic pulse propagation in stratified multiphase media". (external link)
• Per Lunde; Paul Meldahl; Magne Vestrheim (1987). "Full wave elastic modelling for seismic detection of shallow gas". (external link)
• Magne Aanes; Kjetil Daae Lohne; Per Lunde 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)
• Per Lunde; Magne Vestrheim; Reidar Bø et al. (2007). "Reciprocal operation of ultrasonic flow meters: Criteria and applications". (external link)
• Magne Vestrheim; Per Lunde; Rune Fardal (2002). "Endelig element modellering av piezoelektriske transduser vibrasjoner". (external link)
• Jan M. Kocbach; Per Lunde; Magne Vestrheim (2000). "Finite element modeling of piezoceramic disks including radiation into a fluid medium". (external link)
• Kenneth Kirkeng Andersen; Andre Adelsten Søvik; Per Lunde et al. (2015). "Reciprocity calibration method for ultrasonic piezoelectric transducers in air. Comparison of finite element modelling and experimental measurements". (external link)
• Magne Aanes; Kjetil Daae Lohne; Per Lunde et al. (2017). Dispersion properties of Lamb and leaky Lamb modes in elastic and viscoelastic plates. (external link)
• Per Lunde; Kjell-Eivind Frøysa; Remi andré Kippersund et al. (2003). "Transient diffraction effects in ultrasonic meters for volumetric, mass and energy flow measurement of natural gas". (external link)
• Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim (2003). "Transient diffraction effects in ultrasonic flow meters for gas and liquid". (external link)
• Kjell-Eivind Frøysa; Per Lunde; Magne Vestrheim (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)
• Frank Tichy; H. Solli; H. Klaveness et al. (2005). "Nonlinear effects in a 200 kHz sound beam". (external link)
• Audun Oppedal Pedersen; Magne Vestrheim; Per Lunde (2005). "Quantification of nonlinear sound propagation effects in fisheries research echo sounders". (external link)
• Renate Grindheim; Per Lunde; Magne Vestrheim (2019). Characterization of ultrasound transmit-receive measurement systems in air. Comparison with prior work on piezoelectric elements in radial mode vibration. (external link)
• Per Lunde; Magne Vestrheim (1995). "Modelling of loss effects in piezoceramic materials, and adaptation to measurements on radial and thickness modes in thin disks". (external link)
• Hilde Furset; Per Lunde; Magne Vestrheim et al. (1999). “Investigation of acoustic properties in wet gas for ultrasonic flowmetering”. (external link)
• Jan M. Kocbach; Per Lunde; Magne Vestrheim et al. (1998). “Piezoelectric disks with a front layer. Comparisons of FEM with experimental data”. (external link)
• Audun Oppedal Pedersen; Magne Vestrheim; Per Lunde (2005). Consequences of non-linear sound propagation on target strength measurements - preliminary studies. (external link)
• Rune Hauge; Eivind Mosland; Espen Storheim et al. (2014). Updated results on finite element modeling of a transmit-receive ultrasound measurement system. Comparison with experiments in air. (external link)
• Ørnulf Svan Amundsen; Magne Aanes; Jan Kocbach et al. (2011). 'Generalized Permittivity' and Source Sensitivity of Piezoelectric Ceramic Disks. (external link)
• Magne Vestrheim; Per Lunde (1987). "Utvikling av akustiske transdusere for gass-strømmåling". (external link)
• Per Lunde; Magne Vestrheim (1987). "Full bølgje FFP simulering for seismisk gasslommedeteksjon". (external link)
• Per Lunde; Magne Vestrheim (1988). "Full wave simulation of multilayer reflection coefficients in shallow seismics". (external link)
• Asle Lygre; Magne Vestrheim; Per Lunde et al. (1987). "Numerical simulation of ultrasonic flowmeters". (external link)
• Viktor Berge; Asle Lygre; Per Lunde et al. (1987). "Simuleringsverktøy for ultralyd væske og gasstrømningsmåling". (external link)
• Mathias Myrtveit Sæther; Per Lunde; Magne Vestrheim (2021). Ultrasonic beam radiation from piston source through water-immersed steel plate using ASM. Pressure-to-pressure transfer function and numerical challenges. (external link)
• Magne Aanes; Espen Storheim; Magne Vestrheim et al. (2010). "Finite element analysis and measurement of ultrasonic piezoceramic transducers in air and water". (external link)
• Mathias Myrtveit Sæther; Per Lunde; Magne Vestrheim (2022). Ultrasonic beam transmission through a water-immersed steel plate in the vicinity of the ZGV angle. (external link)
• Espen Storheim; Per Lunde; Magne Vestrheim (2017). Vibration of a baffled piezoelectric ceramic circular disk in lower radial modes, with near- and farfield sound radiation. (external link)
• Magne Aanes; Kjetil Daae Lohne; Per Lunde et al. (2018). Transmission through an isotropic viscoelastic water-coupled plate using a transmit-receive transducer system. (external link)
• Jan M. Kocbach; Per Lunde; Magne Vestrheim (1997). "FEM analysis of piezoelectric disks - Method and testing". (external link)
• Mathias Sæther; Simen Hammervold Midtbø; Per Lunde et al. (2020). Nearfield effects from leaky Lamb modes in a steel plate for normal beam incidence. (external link)
• Marianne Solberg; Magne Aanes; Per Lunde et al. (2020). Complex dispersion properties of Lamb modes vs. Poisson’s ratio. (external link)
• Per Lunde; Magne Vestrheim (1986). "Tredimensjonal FFP modellering av elastiske bølgjer i horisontalt stratifiserte media". (external link)
• Per Lunde; Magne Vestrheim; Reidar Bø (1990). "Aspects of transducer modelling". (external link)
• Asle Lygre; Magne Vestrheim; Per Lunde et al. (1988). "Numerical simulation of ultrasonic flowmeters". (external link)
• Espen Storheim; Rune Hauge; Eivind Mosland 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)
• Per Lunde; Petter Norli; Magne Vestrheim 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)
• Per Lunde; Magne Vestrheim (1994). "Comparison of models for radial and thickness modes in piezoceramic disks". (external link)
• Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim (2000). "Challenges for improved accuracy and traceability in ultrasonic fiscal flow metering". (external link)
• Magne Vestrheim; Per Lunde (1987). "Simulering av full-bølge lydforplantning i marin seismikk". (external link)
• Skule Smørgrav; Atle k. Abrahamsen; Per Lunde et al. (2006). "Developments in transducer technology and reciprocity in ultrasonic flow meters". (external link)
• Marianne Solberg; Magne Aanes; Per Lunde et al. (2021). Complex dispersion properties of lossy and leaky Lamb modes related to Poisson's ratio. (external link)
• Eivind Mosland; Rune Hauge; Espen Storheim et al. (2013). Reciprocity calibration method for ultrasonic, piezoelectric transducers in air, including finite element simulations. (external link)
• Audun Oppedal Pedersen; Per Lunde; Magne Vestrheim (2004). "Convergence and accuracy of the Bergen Code for investigating nonlinear effects in fishery echo sounders". (external link)
• Marianne Solberg; Per Lunde; Magne Vestrheim (2022). Energy-flux density in real-, imaginary-, and complex-valued branches of Lamb modes in an isotropic plate. (external link)
• Per Lunde; Magne Vestrheim; Reidar Bø et al. (2005). "Reciprocity and its utilization in ultrasonic flow meters". (external link)
• Magne Aanes; Kjetil Daae Lohne; Per Lunde et al. (2016). Transducer finite aperture effects in sound transmission near leaky Lamb modes in elastic plates at normal incidence. (external link)

Research report

• Magne Vestrheim; Asle Lygre; Reidar Bø et al. (1986). "High precision ultrasonic gas flowmeters. Feasibility study". (external link)
• Asle Lygre; Hans Ingebrigtsen; Reidar Bø et al. (1993). "FMU 700 - Fiskal måler ultralyd. Konstruksjonsunderlag". (external link)
• Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim (1995). "FMUSIK - Version 1.0. Uncertainty model for the 6-path FMU 700 ultrasonic gas flow meter". (external link)
• Magne Vestrheim; Reidar Bø; Per Lunde et al. (1989). "Aluminium elektrolysecelle. Ultralydmålinger av sjikttykkelser. Forprosjekt". (external link)
• Magne Vestrheim; Per Lunde (1988). "Shallow gas detection with a parametric seismic source. Phase I: Feasibility study. Part 1". (external link)
• Per Lunde; Magne Vestrheim (1986). "Lydforplantning fra seismisk kildearray. Simuleringsmodellen CAPROS". (external link)
• Magne Vestrheim; Per Lunde (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)
• Jan M. Kocbach; Per Lunde; Magne Vestrheim 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)
• Per Lunde; Magne Vestrheim; Reidar Bø et al. (1993). "FMU 700 - Fiskal måler ultralyd. Akustiske transdusere". (external link)
• Asle Lygre; Per Lunde; Reidar Bø et al. (1988). "High precision ultrasonic flowmeter. Sensitivity study. Volume II". (external link)
• Asle Lygre; Per Lunde; Reidar Bø et al. (1988). "High precision ultrasonic flowmeter. Sensitivity study. Volume I". (external link)
• Per Lunde; Magne Vestrheim (1986). "Simuleringsprogrammet CAPROS Versjon 1.0. Brukarinstruksjon". (external link)
• Magne Vestrheim; Per Lunde (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)
• Per Lunde; Paul Meldahl; Magne Vestrheim (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)
• Jan M. Kocbach; Per Lunde; Magne Vestrheim et al. (2006). "Finite element modelling of ultrasonic piezoelectric transducers. Extension of FEMP to 3D analysis". (external link)
• Per Lunde; Magne Vestrheim (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)
• Per Lunde; Kjell-Eivind Frøysa; Øyvind Nesse et al. (1996). "Wet gas flow metering. Ultrasonic transit time methods. Basic studies. TOP - Online monitoring of oil and gas processes". (external link)
• Per Lunde; Magne Vestrheim (1991). "Piezoelectric transducer modelling. Thickness mode vibration". (external link)
• Per Lunde; Magne Vestrheim (1992). "FGM 100 fakkelgasssmålar. Verknad av gassparametrar på ultralyd signaltransmisjon". (external link)
• Magne Vestrheim; Reidar Bø; Per Lunde et al. (1990). "Aluminium elektrolysecelle. Ultralydmåling av sjikttykkelser. Akustisk transmisjon i flytende kryolitt". (external link)
• Jan M. Kocbach; Per Lunde; Magne Vestrheim (1999). "FEMP - Finite element modeling of piezoelectric structures. Theory and verification for piezoceramic disks". (external link)
• Jan M. Kocbach; Per Lunde; Remi andré Kippersund et al. (2008). "INDSURF project. 3D finite element simulations for a dual frequency band piezocomposite transducer using FEMP". (external link)
• Magne Vestrheim; Per Lunde (1990). "Shallow seismics using parametric acoustic sources". (external link)
• Per Lunde; Magne Vestrheim (1986). "Simuleringsprogrammet CAPROS Versjon 1.0. Programvaredokumentasjon". (external link)
• J. Jakobsen; Robert Palmstrøm; Per Lunde et al. (1989). "Permanent multilayer well monitoring. A study of a down-hole instrumentation system for oil and gas production wells". (external link)
• Per Lunde; Magne Vestrheim (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)
• Jan M. Kocbach; Per Lunde; Remi andré Kippersund et al. (2007). "INDSURF project. 3D finite element simulations for a dual frequency band piezocomposite transducer using FEMP". (external link)
• Per Lunde; Reidar Bø; Morten I. Andersen 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)
• Per Lunde; Morten I. Andersen; Magne Vestrheim (1997). "EUCLID RTP 10.8 - Smart sonar array. Piezoelectric buzzer for a self calibrating hydrophone system. Work specifications - Rev. 2". (external link)
• Halvor Hobæk; Magne Vestrheim (1996). Proceedings of the 19th Scandinavian symposium on physical acoustics. (external link)
• Jan M. Kocbach; Per Lunde; Magne Vestrheim (2000). "Tables of resonance frequencies for disks of PZT-5A, PZT-5H, Pb(ZrTi)O3 and PbTiO3". (external link)
• Per Lunde; Magne Vestrheim (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)
• Per Lunde; Magne Vestrheim (1991). "Piezoelectric transducer modelling. Part 1: Basic equations for poled ferroelectric ceramics". (external link)
• Per Lunde; Magne Vestrheim; Reidar Bø 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)
• Magne Vestrheim; Per Lunde (1989). "Shallow gas detection with a parametric seismic source. Phase 1: Feasibility study. Part 2: Technological basis for realization". (external link)
• Per Lunde; Remi andré Kippersund; Stig Heggstad et al. (2004). "Multipath ultrasonic liquid flow meter. Ultrasonic transducers for prototype light oil flow meter (Phase 2A). Production procedures". (external link)
• Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim et al. (2004). "Ultrasonic technology for improved exploitation of petroleum resources. A Strategic Institute Programme (SIP). Status Report 2003". (external link)
• Per Lunde; Morten I. Andersen; Magne Vestrheim (1997). "EUCLID RTP 10.8 - Smart sonar array. Piezoelectric buzzer for a self calibrating hydrophone system. Work specifications - Rev. 1". (external link)
• Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim (1997). "GARUSO - Version 1.0. Uncertainty model for multipath ultrasonic transit time gas flow meters". (external link)
• Per Lunde; Magne Vestrheim (1998). “Precision sound velocity cell for natural gas at high pressures. Phase 1 - Feasibility study”. (external link)
• P. Lunde; K.-E. Frøysa; Magne Vestrheim et al. (1996). Wet gas flow metering. Ultrasonic transit time methods. Basic studies. (external link)

Master’s thesis

• Ivar Ravndal; Per Lunde; Magne Vestrheim (2020). Normal incidence ultrasonic beam transmission through steel plates. Measuring and modelling the transmission coefficient. Master thesis. (external link)
• Jan M. Kocbach; Magne Vestrheim; Per Lunde (1997). "Endelig element modellering av piezoelektriske skiver" (Cand. Scient. thesis). (external link)
• Kjetil Daae Lohne; Magne Vestrheim; Per Lunde (2005). "Undersøkelse og utnyttelse av svingemoder i ultralyd tranduserkonstruksjon" (Master thesis). (external link)
• Sverre Kongsro Finstad; Per Lunde; Mathias Myrtveit Sæther 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)
• Irene Dahl Isaksen; Per Lunde; Mathias Myrtveit Sæther et al. (2023). Normally incident ultrasonic beam transmission through a water-embedded steel plate as a function of ka-number. Master thesis.. (external link)
• Andre Adelsten Søvik; Per Lunde; Magne Vestrheim (2015). Ultrasonic measurement systems for gas. Finite element modelling compared with measurements in air. Master thesis. (external link)
• Celine Prøytz; Per Lunde; Mathias Myrtveit Sæther et al. (2022). Underwater ultrasonic transducer technology. Construction, characterization and finite-element modelling. Master thesis. (external link)
• Philip Trætteberg; Per Lunde; Mathias Myrtveit Sæther 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)
• Håvard Råheim Økland; Per Lunde; Mathias Myrtveit Sæther et al. (2023). Finite element modelling, construction and experimental characterization of piezoelectric transducers for gas. Master thesis. (external link)
• Espen Fosse; Per Lunde; Mathias Myrtveit Sæther et al. (2022). Finite element modeling and experimental characterization of piezoelectric ceramic disk in air. Master thesis. (external link)
• Renate Grindheim; Per Lunde; Magne Vestrheim (2019). Ultrasonic measurement system for gas. Experimental and theoretical characterization using piezoelectric elements at radial mode vibration in air. Master thesis. (external link)
• Erlend Bjørndal; Magne Vestrheim; Per Lunde (1994). "Utnyttelse av resonansmodi i ultralyd transduserkonstruksjonar" (Cand. Scient. thesis). (external link)
• Eivind Mosland; Magne Vestrheim; Per Lunde et al. (2013). Reciprocity calibration method for ultrasonic piezoelectric transducers in air. (Master thesis). (external link)
• Kenneth Kirkeng Andersen; Per Lunde; Magne Vestrheim et al. (2015). Reciprocity calibration of ultrasonic piezoelectric disks in air. Master thesis. (external link)
• Magnus Hammervold Eileraas; Per Lunde; Magne Vestrheim (2019). Lydhastighetsmålinger med og uten resonanseffekter i en viskoelastisk stålplate i vann. Master thesis. (external link)
• Magne Aanes; Magne Vestrheim (2009). Undersøkelser av piezokeramiske skiver. Målinger og endelig element analyser. (external link)
• Andreas Hagen; Per Lunde; Magne Vestrheim (2017). Ultrasonic measurement systems with diffraction correction for gas: Master thesis. (external link)
• Rune Hauge; Per Lunde; Magne Vestrheim et al. (2013). Finite element modeling of ultrasound measurement systems for gas. Comparison with experiments in air. (Master thesis). (external link)
• Odd Sverre Oma; Magne Vestrheim (2009). Bestemmelse av egenskaper til piezoelektriske skiver med lavt diameter/tykkelse forhold. (external link)
• Simen Hammervold Midtbø; Per Lunde; Magne Vestrheim 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)
• Vidar Knappskog; Magne Vestrheim (2007). Radiellmode Svingninger i Piezoelektriske Ultralydtransdusere for Luft. Målinger og Endelig Element Analyser. (external link)

Conference poster

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

Lecture

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

Doctoral thesis (PhD)

• Erlend Bjørndal; Magne Vestrheim; Kjell-Eivind Frøysa (2007). Acoustic measurement of liquid density with applications for mass measurement of oil. (external link)
• Per Lunde; Magne Vestrheim; Jan Martin Kocbach (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)
• Magne Aanes; Per Lunde; Magne Vestrheim (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)
• Petter Norli; Magne Vestrheim; Per Lunde (2007). "Sound velocity cell for gas characterization" (PhD thesis). (external link)
• Audun Pedersen; Magne Vestrheim; Per Lunde (2006). "Effects of nonlinear sound propagation in fisheries research" (PhD thesis). (external link)
• Jan Kocbach; Per Lunde; Magne Vestrheim (2000). Finite Element Modeling of Ultrasonic Piezoelectric Transducers. Influence of geometry and material parameters on vibration, response functions and radiated field. (external link)
• Espen Storheim; Per Lunde; Magne Vestrheim (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)

Academic article

• Magne Aanes; Kjetil Daae Lohne; Per Lunde et al. (2015). Transducer beam diffraction effects in sound transmission near leaky Lamb modes in elastic plates at normal incidence. (external link)
• Magne Aanes; Kjetil Daae Lohne; Per Lunde 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)
• Jan M. Kocbach; Per Lunde; Magne Vestrheim (2001). "Resonance frequency spectra with convergence tests for piezoceramic disks using the finite element method". (external link)
• Magne Aanes; Kjetil Daae Lohne; Per Lunde et al. (2017). Beam diffraction effects in the backward wave regions of viscoelastic leaky Lamb modes for plate transmission at normal incidence. (external link)
• Magne Aanes; Kjetil Daae Lohne; Per Lunde 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)
• Rune Øyerhamn; Eivind Nag Mosland; Espen Storheim et al. (2018). Finite element modeling of ultrasound measurement systems for gas. Comparison with experiments in air. (external link)
• Magne Aanes; Kjetil Daae Lohne; Per Lunde et al. (2016). Beam diffraction effects in sound transmission of a fluid-embedded viscoelastic plate at normal incidence. (external link)

Book anthology

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

See a complete overview of publications in Cristin.