Konferanseforedrag
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Audun Oppedal Pedersen; Per Lunde; Rolf Korneliussen
et al. (2009). "Nonlinear sound propagation fisheries research echo" sounders (abstract). (ekstern lenke)
-
Kjetil Daae Lohne; Magne Vestrheim; Per Lunde
(2008). "Ultrasonic signal transmission in plates. Study of a steel plate immersed in water". (ekstern lenke)
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Magne Aanes; Magne Vestrheim
(2009). Finite Element Studies of Permittivity Constants in Piezoceramic Disks. (ekstern lenke)
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Per Lunde; Magne Vestrheim
(1989). "The interaction of seismic waves with shallow gas structures". (ekstern lenke)
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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. (ekstern lenke)
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Eivind Mosland; Rune Hauge; Espen Storheim
et al. (2013). "Reciprocity calibration method for ultrasonic piezoelectric transducers in air”. (ekstern lenke)
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Magne Aanes; Per Lunde; Magne Vestrheim
(2013). "Interaction of a transducer excited ultrasonic beam with an elastic plate. 3D modeling in comparison with experiments”. (ekstern lenke)
-
Per Lunde; Magne Vestrheim; Espen Storheim
et al. (2013). "Industrial ultrasound research at UiB/IFT. From gas flow measurement to structural monitoring". (ekstern lenke)
-
Audun Oppedal Pedersen; Per Lunde; Rolf Korneliussen
et al. (2008). "Nonlinear sound propagation fisheries research echo sounders". (ekstern lenke)
-
Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim
(2000). "Challenges for improved accuracy and traceability in ultrasonic fiscal flow metering of natural gas". (ekstern lenke)
-
Magne Vestrheim; Steinar Vervik
(1996). Transit time determination in a measurement system, with effects of transducers. (ekstern lenke)
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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”. (ekstern lenke)
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Per Lunde; Magne Vestrheim; Reidar Bø
(2006). "Reciprocity in electroacoustic measurement systems, and reciprocal operation: Principles and applications to ultrasonic flow metering". (ekstern lenke)
-
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". (ekstern lenke)
-
Per Lunde; Remi andré Kippersund; Magne Vestrheim
et al. (2004). "Transient diffraction effects in piezoelectric ultrasonic transducers using finite element modelling". (ekstern lenke)
-
Remi andré Kippersund; Per Lunde; Magne Vestrheim
(2004). "Finite element modelling of piezoelectric ultrasonic transducer properties in natural gas". (ekstern lenke)
-
Petter Norli; Per Lunde; Magne Vestrheim
(2004). "Methods for precision sound velocity measurements in pressure cells for gas characterization". (ekstern lenke)
-
Per Lunde; Remi andré Kippersund; Magne Vestrheim
(2003). "Signal modelling using the FLOSIM system model in ultrasonic instrumentation for industrial applications". (ekstern lenke)
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Magne Aanes; Per Lunde; Magne Vestrheim
(2013). Ultrasonic beam transmission through a steel plate at oblique incidence: Uniform piston vs. piezoelectric transducer. (ekstern lenke)
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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. (ekstern lenke)
-
Audun Oppedal Pedersen; Magne Vestrheim; Per Lunde
(2005). "Nonlinear sound propagation effects in fisheries research echo sounders - Measurements and simulations in fresh water". (ekstern lenke)
-
Simen Hammervold Midtbø; Magne Aanes; Per Lunde
et al. (2018). Comparison of angular spectrum models for baffled piston sound field with finite receiver apertures. (ekstern lenke)
-
Magne Aanes; Jan Kocbach; Magne Vestrheim
(2010). Modal and direct harmonic solution methods in FE modeling of piezoceramic disks. (ekstern lenke)
-
Audun Oppedal Pedersen; Per Lunde; Magne Vestrheim
(2005). "Nonlinear effects in fisheries and research echo sounders and sonars". (ekstern lenke)
-
Petter Norli; Per Lunde; Magne Vestrheim
(2005). "Investigation of precision sound velocity measurements as reference for ultrasonic gas flow meters". (ekstern lenke)
-
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. (ekstern lenke)
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Espen Storheim; Magne Aanes; Magne Vestrheim
et al. (2010). "Ultrasonic piezoceramic transducers for air, - finite element analysis and measurements". (ekstern lenke)
-
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. (ekstern lenke)
-
Magne Vestrheim; Per Lunde; Paul Meldahl
(1988). "High resolution shallow seismic surveying using parametric acoustic source technology". (ekstern lenke)
-
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?. (ekstern lenke)
-
Rune Hauge; Eivind Mosland; Espen Storheim
et al. (2013). "Finite element modeling of ultrasound measurement systems for gas. System model compared to measurements”. (ekstern lenke)
-
Magne Vestrheim; Per Lunde
(1988). "Parametrisk lydkilde. Optimalisering". (ekstern lenke)
-
Jan M. Kocbach; Per Lunde; Magne Vestrheim
(1999). "FE simulations of piezoceramic disks with a front layer of varying thickness". (ekstern lenke)
-
Magne Vestrheim; Per Lunde
(1989). "Pulse generation using a parametric source". (ekstern lenke)
-
Per Lunde; Remi André Kippersund; Magne Vestrheim
et al. (2005). "Finite element modeling of sound propagation from a piezoelectric transducer through an elastic layer". (ekstern lenke)
-
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". (ekstern lenke)
-
Skule Smørgrav; Atle k. Abrahamsen; Per Lunde
et al. (2006). "Developments in transducer technology and reciprocity in ultrasonic flow meters". (ekstern lenke)
-
Skule Smørgrav; Atle k. Abrahamsen; Per Lunde
et al. (2007). Developments in transducer technology and reciprocity in ultrasonic flow meters. (ekstern lenke)
-
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". (ekstern lenke)
-
Espen Storheim; Per Lunde; Magne Vestrheim
(2011). Diffraction correction in ultrasonic fields for measurements of sound velocity in gas. Conventional and alternative methods. (ekstern lenke)
-
Magne Vestrheim; Per Lunde
(1988). "Signalbehandling i parametriske antenner". (ekstern lenke)
-
Per Lunde; Magne Vestrheim; Asle Lygre
(1989). "Ultrasonic pulse propagation in stratified multiphase media". (ekstern lenke)
-
Per Lunde; Paul Meldahl; Magne Vestrheim
(1987). "Full wave elastic modelling for seismic detection of shallow gas". (ekstern lenke)
-
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”. (ekstern lenke)
-
Per Lunde; Magne Vestrheim; Reidar Bø
et al. (2007). "Reciprocal operation of ultrasonic flow meters: Criteria and applications". (ekstern lenke)
-
Magne Vestrheim; Per Lunde; Rune Fardal
(2002). "Endelig element modellering av piezoelektriske transduser vibrasjoner". (ekstern lenke)
-
Jan M. Kocbach; Per Lunde; Magne Vestrheim
(2000). "Finite element modeling of piezoceramic disks including radiation into a fluid medium". (ekstern lenke)
-
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". (ekstern lenke)
-
Magne Aanes; Kjetil Daae Lohne; Per Lunde
et al. (2017). Dispersion properties of Lamb and leaky Lamb modes in elastic and viscoelastic plates. (ekstern lenke)
-
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". (ekstern lenke)
-
Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim
(2003). "Transient diffraction effects in ultrasonic flow meters for gas and liquid". (ekstern lenke)
-
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". (ekstern lenke)
-
Frank Tichy; H. Solli; H. Klaveness
et al. (2005). "Nonlinear effects in a 200 kHz sound beam". (ekstern lenke)
-
Audun Oppedal Pedersen; Magne Vestrheim; Per Lunde
(2005). "Quantification of nonlinear sound propagation effects in fisheries research echo sounders". (ekstern lenke)
-
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. (ekstern lenke)
-
Per Lunde; Magne Vestrheim
(1995). "Modelling of loss effects in piezoceramic materials, and adaptation to measurements on radial and thickness modes in thin disks". (ekstern lenke)
-
Hilde Furset; Per Lunde; Magne Vestrheim
et al. (1999). “Investigation of acoustic properties in wet gas for ultrasonic flowmetering”. (ekstern lenke)
-
Jan M. Kocbach; Per Lunde; Magne Vestrheim
et al. (1998). “Piezoelectric disks with a front layer. Comparisons of FEM with experimental data”. (ekstern lenke)
-
Audun Oppedal Pedersen; Magne Vestrheim; Per Lunde
(2005). Consequences of non-linear sound propagation on target strength measurements - preliminary studies. (ekstern lenke)
-
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. (ekstern lenke)
-
Ørnulf Svan Amundsen; Magne Aanes; Jan Kocbach
et al. (2011). 'Generalized Permittivity' and Source Sensitivity of Piezoelectric Ceramic Disks. (ekstern lenke)
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Magne Vestrheim; Per Lunde
(1987). "Utvikling av akustiske transdusere for gass-strømmåling". (ekstern lenke)
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Per Lunde; Magne Vestrheim
(1987). "Full bølgje FFP simulering for seismisk gasslommedeteksjon". (ekstern lenke)
-
Per Lunde; Magne Vestrheim
(1988). "Full wave simulation of multilayer reflection coefficients in shallow seismics". (ekstern lenke)
-
Asle Lygre; Magne Vestrheim; Per Lunde
et al. (1987). "Numerical simulation of ultrasonic flowmeters". (ekstern lenke)
-
Viktor Berge; Asle Lygre; Per Lunde
et al. (1987). "Simuleringsverktøy for ultralyd væske og gasstrømningsmåling". (ekstern lenke)
-
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. (ekstern lenke)
-
Magne Aanes; Espen Storheim; Magne Vestrheim
et al. (2010). "Finite element analysis and measurement of ultrasonic piezoceramic transducers in air and water". (ekstern lenke)
-
Mathias Myrtveit Sæther; Per Lunde; Magne Vestrheim
(2022). Ultrasonic beam transmission through a water-immersed steel plate in the vicinity of the ZGV angle. (ekstern lenke)
-
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. (ekstern lenke)
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Magne Aanes; Kjetil Daae Lohne; Per Lunde
et al. (2018). Transmission through an isotropic viscoelastic water-coupled plate using a transmit-receive transducer system. (ekstern lenke)
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Jan M. Kocbach; Per Lunde; Magne Vestrheim
(1997). "FEM analysis of piezoelectric disks - Method and testing". (ekstern lenke)
-
Mathias Sæther; Simen Hammervold Midtbø; Per Lunde
et al. (2020). Nearfield effects from leaky Lamb modes in a steel plate for normal beam incidence. (ekstern lenke)
-
Marianne Solberg; Magne Aanes; Per Lunde
et al. (2020). Complex dispersion properties of Lamb modes vs. Poisson’s ratio. (ekstern lenke)
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Per Lunde; Magne Vestrheim
(1986). "Tredimensjonal FFP modellering av elastiske bølgjer i horisontalt stratifiserte media". (ekstern lenke)
-
Per Lunde; Magne Vestrheim; Reidar Bø
(1990). "Aspects of transducer modelling". (ekstern lenke)
-
Asle Lygre; Magne Vestrheim; Per Lunde
et al. (1988). "Numerical simulation of ultrasonic flowmeters". (ekstern lenke)
-
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”. (ekstern lenke)
-
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". (ekstern lenke)
-
Per Lunde; Magne Vestrheim
(1994). "Comparison of models for radial and thickness modes in piezoceramic disks". (ekstern lenke)
-
Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim
(2000). "Challenges for improved accuracy and traceability in ultrasonic fiscal flow metering". (ekstern lenke)
-
Magne Vestrheim; Per Lunde
(1987). "Simulering av full-bølge lydforplantning i marin seismikk". (ekstern lenke)
-
Skule Smørgrav; Atle k. Abrahamsen; Per Lunde
et al. (2006). "Developments in transducer technology and reciprocity in ultrasonic flow meters". (ekstern lenke)
-
Marianne Solberg; Magne Aanes; Per Lunde
et al. (2021). Complex dispersion properties of lossy and leaky Lamb modes related to Poisson's ratio. (ekstern lenke)
-
Eivind Mosland; Rune Hauge; Espen Storheim
et al. (2013). Reciprocity calibration method for ultrasonic, piezoelectric transducers in air, including finite element simulations. (ekstern lenke)
-
Audun Oppedal Pedersen; Per Lunde; Magne Vestrheim
(2004). "Convergence and accuracy of the Bergen Code for investigating nonlinear effects in fishery echo sounders". (ekstern lenke)
-
Marianne Solberg; Per Lunde; Magne Vestrheim
(2022). Energy-flux density in real-, imaginary-, and complex-valued branches of Lamb modes in an isotropic plate. (ekstern lenke)
-
Per Lunde; Magne Vestrheim; Reidar Bø
et al. (2005). "Reciprocity and its utilization in ultrasonic flow meters". (ekstern lenke)
-
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. (ekstern lenke)
Forskningsrapport
-
Magne Vestrheim; Asle Lygre; Reidar Bø
et al. (1986). "High precision ultrasonic gas flowmeters. Feasibility study". (ekstern lenke)
-
Asle Lygre; Hans Ingebrigtsen; Reidar Bø
et al. (1993). "FMU 700 - Fiskal måler ultralyd. Konstruksjonsunderlag". (ekstern lenke)
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Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim
(1995). "FMUSIK - Version 1.0. Uncertainty model for the 6-path FMU 700 ultrasonic gas flow meter". (ekstern lenke)
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Magne Vestrheim; Reidar Bø; Per Lunde
et al. (1989). "Aluminium elektrolysecelle. Ultralydmålinger av sjikttykkelser. Forprosjekt". (ekstern lenke)
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Magne Vestrheim; Per Lunde
(1988). "Shallow gas detection with a parametric seismic source. Phase I: Feasibility study. Part 1". (ekstern lenke)
-
Per Lunde; Magne Vestrheim
(1986). "Lydforplantning fra seismisk kildearray. Simuleringsmodellen CAPROS". (ekstern lenke)
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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". (ekstern lenke)
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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". (ekstern lenke)
-
Per Lunde; Magne Vestrheim; Reidar Bø
et al. (1993). "FMU 700 - Fiskal måler ultralyd. Akustiske transdusere". (ekstern lenke)
-
Asle Lygre; Per Lunde; Reidar Bø
et al. (1988). "High precision ultrasonic flowmeter. Sensitivity study. Volume II". (ekstern lenke)
-
Asle Lygre; Per Lunde; Reidar Bø
et al. (1988). "High precision ultrasonic flowmeter. Sensitivity study. Volume I". (ekstern lenke)
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Per Lunde; Magne Vestrheim
(1986). "Simuleringsprogrammet CAPROS Versjon 1.0. Brukarinstruksjon". (ekstern lenke)
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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". (ekstern lenke)
-
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). (ekstern lenke)
-
Jan M. Kocbach; Per Lunde; Magne Vestrheim
et al. (2006). "Finite element modelling of ultrasonic piezoelectric transducers. Extension of FEMP to 3D analysis". (ekstern lenke)
-
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"". (ekstern lenke)
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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". (ekstern lenke)
-
Per Lunde; Magne Vestrheim
(1991). "Piezoelectric transducer modelling. Thickness mode vibration". (ekstern lenke)
-
Per Lunde; Magne Vestrheim
(1992). "FGM 100 fakkelgasssmålar. Verknad av gassparametrar på ultralyd signaltransmisjon". (ekstern lenke)
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Magne Vestrheim; Reidar Bø; Per Lunde
et al. (1990). "Aluminium elektrolysecelle. Ultralydmåling av sjikttykkelser. Akustisk transmisjon i flytende kryolitt". (ekstern lenke)
-
Jan M. Kocbach; Per Lunde; Magne Vestrheim
(1999). "FEMP - Finite element modeling of piezoelectric structures. Theory and verification for piezoceramic disks". (ekstern lenke)
-
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". (ekstern lenke)
-
Magne Vestrheim; Per Lunde
(1990). "Shallow seismics using parametric acoustic sources". (ekstern lenke)
-
Per Lunde; Magne Vestrheim
(1986). "Simuleringsprogrammet CAPROS Versjon 1.0. Programvaredokumentasjon". (ekstern lenke)
-
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". (ekstern lenke)
-
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). (ekstern lenke)
-
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". (ekstern lenke)
-
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". (ekstern lenke)
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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". (ekstern lenke)
-
Halvor Hobæk; Magne Vestrheim
(1996). Proceedings of the 19th Scandinavian symposium on physical acoustics. (ekstern lenke)
-
Jan M. Kocbach; Per Lunde; Magne Vestrheim
(2000). "Tables of resonance frequencies for disks of PZT-5A, PZT-5H, Pb(ZrTi)O3 and PbTiO3". (ekstern lenke)
-
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). (ekstern lenke)
-
Per Lunde; Magne Vestrheim
(1991). "Piezoelectric transducer modelling. Part 1: Basic equations for poled ferroelectric ceramics". (ekstern lenke)
-
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". (ekstern lenke)
-
Magne Vestrheim; Per Lunde
(1989). "Shallow gas detection with a parametric seismic source. Phase 1: Feasibility study. Part 2: Technological basis for realization". (ekstern lenke)
-
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". (ekstern lenke)
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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". (ekstern lenke)
-
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". (ekstern lenke)
-
Per Lunde; Kjell-Eivind Frøysa; Magne Vestrheim
(1997). "GARUSO - Version 1.0. Uncertainty model for multipath ultrasonic transit time gas flow meters". (ekstern lenke)
-
Per Lunde; Magne Vestrheim
(1998). “Precision sound velocity cell for natural gas at high pressures. Phase 1 - Feasibility study”. (ekstern lenke)
-
P. Lunde; K.-E. Frøysa; Magne Vestrheim
et al. (1996). Wet gas flow metering. Ultrasonic transit time methods. Basic studies. (ekstern lenke)
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