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Electronics and Measurement Technology

Measurement Science and Instrumentation

Selected publications

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Books

  • Johansen G A and Jackson P Radioisotope gauges for industrial process measurements ISBN 0-471-48999-9, John Wiley & Sons, Ltd. (2004) 336 pp.

 

Selected journal publications

  • Hjertaker et al, A data acquisition and control system for high-speed gamma-ray tomography, Measurement Science and Technology, Volume 19, 094012 (2008) 6 pp

  • Maad et al, Semi-empirical scatter correction model for high speed gamma-ray tomography, Measurement Science and Technology, Volume 19, 094016 (2008) 6 pp

  • Dyakoski et al. A dual modality tomography system for imaging gas/solids flows, Particle & Particle Systems Characterization, Volume 23 (3-4): 260-265 (2006

  • Hjertaker B T, Tjugum S-A, Hammer E A and Johansen G A Multi modality tomography for multiphase hydrocarbon flow IEEE Sensors Journal, Volume 5, No 2 (2005).

  • Holstad M B, Robins L, Jackson P and Johansen G A Scattered gamma radiation utilised to measure remnant fresh absorbent in absorbent beds Submitted to Meas. Sci. & Technol.

  • Holstad M B, Johansen G A, Jackson P and Eidsnes K S Scattered gamma radiation utilised for level measurements in gravitation separators Submitted to IEEE Sensors Journal.

  • Tjugum S-A, Johansen G A and Frieling J A multiple voxel model for scattered gamma radiation in pipe flow Meas. Sci. & Technol. 14 No 10 (2003) 1777-1782.

  • Tjugum S-A, Frieling J and Johansen G A A compact low-energy multibeam gamma-ray densitometer for pipe-flow measurements Nucl. Instr. & Meth. B 197 (2002) 301-309.

  • Tjugum S-A, Hjertaker  B T and Johansen G A Multiphase flow regime identification by multibeam gamma-ray densitometry Meas. Sci. & Technol. 13 (2002) 1319-1326.

  • Mwambela A J and Johansen G A Multiphase flow component volume fraction measurement: experimental evaluation of entropic thresholding methods using an electrical capacitance tomography system Meas. Sci. & Technol. 12 No.8 (2001) 1092-1101.

  • Hjertaker B T, Johansen G A and Jackson P Level Measurement and Control Strategies for Subsea Separators Journ. Electr. Imaging 10 No.3 (2001) 679-689.

  • Tjugum, S-A and Johansen G A The use of gamma-radiaiton in fluid flow measurements Rad. Phys & Chem 61 (2001) 797-798.

  • Johansen GA and Jackson P Salinity independent measurement of gas volume fraction in oil/ gas/water pipe flows Appl. Rad. and Isotopes 53 No. 4-5 (2000) 595-601.

  • Åbro E, Khoryakov V A, Johansen G A and Kocbach L Determination of void fraction and flow regime using neural network trained on simulated data based on gamma-ray densitometry Meas. Sci. & Technol. 10 (1999) 619-630.

  • Åbro E and Johansen G A Improved void fraction determination by means of multibeam gamma-ray attenuation measurements Flow Meas & Instr. 10 (1999) 99-108.

  • Åbro E , Johansen G.A and Opedal H A radiation transport model as a design tool for gamma densitometers Nucl. Instr. & Meth A431 (1999) 347-355.

  • Folgerø K Broad-band dielectric spectroscopy of low-permittivity fluids using one measurement cell 47 No. 4 (1998) 881-885.

  • Hilland J and Friisø T Evaluation of modelling routines for on-line implementation of the open ended coaxial probe Meas. Sci. Techn., 9 (1998) 790-796.

  • Hjertaker BT Static characterization of a dual sensor flow imaging system Flow Meas. Instr. 9 (1998) 183-191.

  • Tollefsen J and Hammer E A Capacitance sensor design for reducing errors in phase concentration measurements Flow Meas. Instr. 9 (1998) 25-32.

  • Friisø T, Schildberg Y, Odile R, Tjomsland T, Førdedal H and Sjøblom J Complex permittivity of crude oils and solutions of heavy crude oil fractions J. Disp. Sci. Techn. 19 (1998) 93-126.

  • Friisø T and Tjomsland T Monitoring of density changes in low-permittivity liquids by microwave permittivity measurements with an open-ended probe Meas. Sci. Technol. 8 (1997) 1295- 1305.

  • Noertemann K, Hilland J and Kaatze U Dielectric properties of aquaous NaCl solutions at microwave frequencies Journal of Physical Chemistry 101 (1997) 6864-6869.

  • Hammer E A and Johansen G A Process Tomography in the Oil Industry - State of the art and Future Possibilities Measurement+Control 30 No. 7 (1997) 212-216.

  • Thorn R, Johansen G A and Hammer E A Recent Developments in Three-Phase Flow Measurement Meas. Sci. Technol. 8 (1997) 691-701.

  • Hilland J Simple sensor system for measuring the dielectric properties of saline solutions Meas. Sci. Technol. 8 (1997) 901-910.

  • Jakobsen T and Folgerø K Dielectric spectroscopy measurements on gas hydrate formation in water-in-oil emulsions with open-ended coaxial probes Meas. Sci. Technol. 8, (1997) 1006- 1015.

  • Mwambela A J, Isaksen Ø and Johansen G A The use of entropic thresholding methods in reconstruction of capacitance tomography data. Chem. Eng. Sci. 52, No. 13 (1997) 2149-2159.

  • Johansen G A, Frøyen S and Hansen T E Gamma-ray detection with an UV-enhanced photodiode and scintillation crystals emitting at short wavelengths. Nucl. Instr. Meth. A387 (1997) pp. 239-242.

  • Tjomsland T, Hilland J, Christy A A, Sjøblom J, Riis M, Friisø T, Folgerø K Comparison of infrared and impedance spectra of petroleum fractions Fuel 75 No 3 (1996) pp. 322-332.
  • Folgerø K and Tjomsland T Permittivity measurement of thin liquid layers using open-ended coaxial probes Meas. Sci. Technol. 7 (1996) pp. 1164-1173.

  • Folgerø K Bilinear calibration of coaxial transmission/reflection cells for permittivity measurement of low-loss liquids Meas. Sci. Technol. 7 (1996) pp. 1260-1269.

  • Åbro E and Johansen G A Low noise gamma-ray and X-ray detectors based on CdTe-materials. Nucl. Instr. Meth. A377 (1996) pp. 470-474.

  • Johansen G A and Åbro E A new CdZnTe detector system for low energy gamma-ray measurement. Sensors and Actuators A54 (1996) pp. 493-498.

  • Johansen G A, Frøystein T, Hjertaker B T and Olsen Ø A dual sensor flow imaging tomographic system. Meas. Sci. Techn. 7, No. 3 (1996) pp. 297-307.

  • Folgerø K, Friisø T, Hilland J and Tjomsland T A broad band and high-sensitivity dielectric spectroscopy measurement system for quality determination of low-permittivity fluids Meas. Sci. Technol. 6 (1995) 995-1008.

  • Johansen G A, Frøystein T, Hjertaker B T, Isaksen Ø, Olsen Ø, Strandos S K, Skoglund T O, Åbro E and Hammer E A: The development of a dual-mode tomograph for three-component flow imaging. The Chemical Engineering Journal 56, No. 2 (1995) pp. 175-182.

  • Vold Per, Johansen Geir A, Nordtvedt Jan-Erik ElPed: Et interaktivt PC-basert læringsprogram for elektriske kretser Nytt om data i skolan, 2 (1994) 30-36.

  • Isaksen Ø, Dico A S and Hammer E A: A Capacitace-based tomography system for interface measurement in separation vessels. Measurement Science and Technology, 5, No. 10 (1994) 1262-1271

  • Isaksen Ø andNordtvedt J E A New Reconstruction Algorithm for Use with Capacitance Based Process Tomography MIC, 15, No. 1 (1994) 9-22.

  • Johansen G A and Frøystein T Detectors for gamma-ray flow imaging. Flow Measurement and Instrumentation, 5, No.1 (1994) 15-21.

  • Johansen G A, Nordtvedt J E, Vold P ElPed: An interactive PC-based learning program for basic electrical circuits. Computers in Physics, 7, No. 5 (1993) 577-584.

  • Isaksen Ø and Nordtvedt J E A New Reconstruction Algorithm for Process Tomography Measurement Science and Technology, 4, No. 12 (1993) 1464-1475.

  • Johansen G A and Johnson C B Operational characteristics of an electron-bombarded silicon- diode photomultiplier tube. Nucl. Instr. and Meth., A326 (1993) 295-298.

  • Hammer E A, Tollefsen J and Olsvik K Capacitance Transducers for Non-Intrusive Measurement of Water in Crude Oil. Flow Meas. and Instr., 1 (1989).

 

PhD thesis

  • Yan G Interface Level Determination in Gravitational Separators Using High Frequency Magnetic Field Measurements Dr. scient. thesis, Department of Physics and Technology, University of Bergen (January 2005).

  • Cimpan E High Frequency Magnetic Field Technique: Mathematical Modelling and Development of a Full Scale Water Fraction Meter Dr. scient. thesis, Department of Physics and Technology, University of Bergen (January 2005).

  • Holstad M B Gamma-ray scatter methods applied to industrial measurement systems Dr. scient. thesis, Department of Physics and Technology, University of Bergen (September 2004).

  • Tjugum S-A Dual modality densitometry for pipe flow measurement Dr. scient. thesis in physics, Department of Physics, University of Bergen (March 2003).

  • Mwambela A Reconstruction of Capacitance tomography data using Entropic Thresholding PhD thesis in physics, Department of Physics, University of Dar-Es-Salaam (September 1999).

  • Åbro E Measurements of Gas Fraction in Pipe Flows using Multi-beam Gamma-ray Attenuation Dr. scient. thesis in physics, Department of Physics, University of Bergen (May 1999).

  • Hjertaker B T Multiphase Flow Imaging by Dual Mode Tomography Dr. scient. thesis in physics, Department of Physics, University of Bergen (March 1998).

  • Hilland J On-line quality determination of petroleum fluids by means of dielectric spectroscopy and chemometric modelling (Confidential until Oct. 2000) Dr. scient. thesis in physics, Department of Physics, University of Bergen (1997).

  • Friisø T Quality determination of petroleum liquids from complex permittivity spectra Dr. scient. thesis in physics, Department of Physics, University of Bergen (1997).

  • Folgerø K Coaxial sensors for broad-band complex permittivity measurements of petroleum fluids Dr. scient. thesis in physics, Department of Physics, University of Bergen (1996).

  • Tollefsen J New capacitance sensor principles in flow measurement Dr. scient. thesis in physics, Department of Physics, University of Bergen (1995).

  • Ullaland K The design of a VLSI mixed analogue and digital modular prosessor for capacitance tomography Dr. scient. thesis in physics, Department of Physics, University of Bergen (1994).

  • Isaksen Ø A novel approach to reconstruction of process tomography data Dr. scient. thesis in physics, Department of Physics, University of Bergen (1994).

  • Time R Measurement of two phase flowregimes using capacitance sensors and hydrodynamic modelling Dr. scient. thesis in physics, Department of Physics, University of Bergen (1994).

 

MSc reports

  • Breivik J, Monte Carlo modellering av nukleære målesystemer, MSc thesis at the Dept. of Physics, University of Bergen (June 2008) 

  • Kristiansen S, Development of a liquid in gas detector, MSc thesis at the Dept. of Physics, University of Bergen (June 2008)    

  • Brekke N, System for tracking head position and rotation during Magnetic Resonance Imaging, MSc thesis at the Dept. of Physics, University of Bergen (June 2008)  

  • Olsen K A, Automatisering og optimalisering av fortrengningseksperimenter i oppsprukne reservoarbergarter, MSc thesis at the Dept. of Physics, University of Bergen (June 2008)   

  • Steffensen P, Multiparametrisk monitorering av spiserøret og programutvikling for biomekaniske studier av organet, MSc thesis at the Dept. of Physics, University of Bergen (June 2008) 

  • Bøe Y, Measurements and simulations of electrical conductivity in live fish, MSc thesis at the Dept. of Physics, University of Bergen (June 2008) 

  • Svenningsen T, Målefeil og drift i ultralydmåler under bruk i felt, MSc thesis at the Dept. of Physics, University of Bergen (June 2008)

  • Engeberg A C, Monte Carlo modelling of gamma-ray attenuation in a subsea fluid analyzer system, MSc thesis at the Dept. of Physics, University of Bergen (June 2008)    

  • Meric I, Monte Carlo modeling of the intrinsic stopping efficiency in Geiger-Müller detectors, MSc thesis at the Dept. of Physics, University of Bergen (June 2008)   

  • Schuster E, Datainnsamlingskontroller for høyhastighets-gammastråletomograf basert på USB- og Ethernet-grensesnitt, MSc thesis at the Dept. of Physics, University of Bergen (December 2007)

  • Spjeld H J, Karakterisering av høyhastighets UHF datamodem til bruk sammen med Subnet Relay, MSc thesis at the Dept. of Physics, University of Bergen (December 2007)   

  • Stangborli E, Acquisition and synchronization of sensor data for multiparametric imaging in gastroenterological studies, MSc thesis at the Dept. of Physics, University of Bergen (June 2007)

  • Vasdal A, High frequency magnetic field sensor measurement of oil/water fraction, MSc thesis at the Dept. of Physics, University of Bergen (June 2007) 

  • Grimsbø E, Instrumentation of swim tunnels and conductivity measurement of fish, MSc thesis at the Dept. of Physics, University of Bergen (March 2007)    

  • Nøttveit G, RFM, MSc thesis at the Dept. of Physics, University of Bergen (October 2006)

  • Frøyen S, Utvikling og analyse av 10 MHz gammadetektorsystem, MSc thesis at the Dept. of Physics, University of Bergen (July 2006) 

  • Almås O A, Tomografi datainnsamling / USB grensesnitt, MSc thesis at the Dept. of Physics, University of Bergen (June 2006)         

  • Klebo B, Enstråle ultralyd, MSc thesis at the Dept. of Physics, University of Bergen (June 2006)        

  • Haugland K, WiMax kommunikasjon,  MSc thesis at the Dept. of Physics, University of Bergen (June 2006)   

  • Sørflakne T, PHYS114 experiments, MSc thesis at the Dept. of Physics, University of Bergen (March 2006) 

  • Ratnam L, DMD measurements, MSc thesis at the Dept. of Physics, University of Bergen (March 2006)      

  • Stavland S H, SOFA Ultralyd, MSc thesis at the Dept. of Physics, University of Bergen (December 2005)  

  • Spord V, Detection of oil in water, MSc thesis at the Dept. of Physics, University of Bergen (December 2005) 

  • Berntsen B, SOFA gamma, MSc thesis at the Dept. of Physics, University of Bergen (October 2005)      

  • Hjelmås A, Dopplermåling i blodstrøm, MSc thesis at the Dept. of Physics, University of Bergen (July 2005)

  • Eidsnes K S, Spredt gammastråling i industrielle målinger, MSc thesis at the Dept. of Physics, University of Bergen (July 2005)         

  • Dyrøy N B, Høyfrekvens magnetfelt for vannkutt og salinitet, MSc thesis at the Dept. of Physics, University of Bergen (June 2005)     

  • Ellingsen A B, USB-grensesnitt mot tomografer, MSc thesis at the Dept. of Physics, University of Bergen (June 2005)   

  • Krüger A, Visualiseringsinstrumentering for laboratoriekurs i måleteknologi, MSc thesis at the Dept. of Physics, University of Bergen (June 2005)         

  • Toftevåg K R, Ultralyd transittid strømningsmeter, MSc thesis at the Dept. of Physics, University of Bergen (June 2005)   

  • Austbø J, Algesensor, MSc thesis at the Dept. of Physics, University of Bergen (May 2005)    

  • Sæthre B S, Interfacial area determination by chemically enhanced extraction, MSc thesis at the Dept. of Physics, University of Bergen (October 2004)

  • Mæland G, Optisk polarisasjon MSc thesis at the Dept. of Physics, University of Bergen (September 2004)

  • Iversen, O A Identifikasjon av strømningsregime ved bruk av flerstråle gammadensitometri   Cand. scient. thesis at the Dept. of Physics, University of Bergen (June 2004)

  • Hopperstad, H  To-lags piezoelektrisk transduser med justerbar resonansfrekvens  Cand. scient. thesis at the Dept. of Physics, University of Bergen (June 2004)

  • Nødset, A  Måling av vannkutt og konduktivitet i en olje/vann-blanding ved hjelp av høyfrekvent magnetfelt Cand. scient. thesis at the Dept. of Physics, University of Bergen (December 2003)

  • Vallestad, H   Ikke-konvensjonelle måletransformatorer Cand. scient. thesis at the Dept. of Physics, University of Bergen (Oktober 2003) 

  • Indrebø, S Metoder for kontinuerlig tilstandsmåling og diagnostisering av asynkronmotorer  Cand. scient. thesis at the Dept. of Physics, University of Bergen (Oktober 2003)

  • Vagle, O Metoder for redusert dødtid i Geiger-Müller-detektorer  Cand. scient. thesis at the Dept. of Physics, University of Bergen (June 2003) 

  • Pettersen, F I Nivåmåling ved hjelp av induktans og bestemmelse av indusert tap i spolen  Cand. scient. thesis at the Dept. of Physics, University of Bergen (June 2003)

  • Rohde, O A  Styresystemet i HUGIN og mulige forbedringer  Cand. scient. thesis at the Dept. of Physics, University of Bergen (December 2002)

  • Langelid, A  Aktiv slukking av Geiger Müller detektor Cand. scient. thesis at the Dept. of Physics, University of Bergen (May 2002)

  • Fossdal, G A  Optimalisering av spoler til vannkuttmålere som baseres på høyfrekvent magnetisk felt   Cand. scient. thesis at the Dept. of Physics, University of Bergen (May 2002)

  • Rauset, O J Sand velocity measurement by cross-correlation of passive-acoustic signals Cand. scient. thesis at the Dept. of Physics, University of Bergen (March 2002) 

  • Spilde, J Fiskefangstmåler - Optimalisering av sensordesign for måling av mengde og størrelsesfordeling (Confidential CMR report) Cand. scient. thesis at the Dept. of Physics, University of Bergen (November 2001).

  • Dietzel, K Online X-ray fluorescence analysis applied to industrial processes and environmental monitoring  Cand. scient. thesis at the Dept. of Physics, University of Bergen (October 2000).

  • Edvardsen, T H Integrert LQG-regulator for banestyring av skip Cand. scient. thesis at the Dept. of Physics, University of Bergen (June 2000).

  • Holstad, M B Implementation of dual mode gamma-ray densitometer for measurement of gas fraction in three-phase flow Cand. scient. thesis at the Dept. of Physics, University of Bergen (June 2000).

  • Rongved, G K Nye måleprinsipp innen trefase strømningsmåling Cand. scient. thesis at the Dept. of Physics, University of Bergen (June 2000).

  • Kolsrud, T R Testing and improving capacitance principles in flow measurements Cand. scient. thesis at the Dept. of Physics, University of Bergen (May 2000).

  • Flataker, A Hurtig A/D-omformar Cand. scient. thesis at the Dept. of Physics, University of Bergen (March 2000).

  • Rosnes, E Unik orddetksjon og frekvensestimering for digital QAM Cand. scient. thesis at the Dept. of Physics, University of Bergen (October 1999).

  • Klepsvik, I Differensialtrykk- og kapasitansmåling for flerfase rørstrøm Cand. scient. thesis at the Dept. of Physics, University of Bergen (June 1999).

  • Soldal, R Deteksjon av vasskutt og separatornivå ved hjelp av eit høgfrekvent magnetisk felt Cand. scient. thesis at the Dept. of Physics, University of Bergen (June 1999).

  • Mjåtvedt, P Deteksjon av giftige og brennbare gasser Cand. scient. thesis at the Dept. of Physics, University of Bergen (January 1999).

  • Kamyar, R Modelling of electrical field between electrodes in a capacitance sensor in connection with cross correlation Cand. scient. thesis at the Dept. of Physics, University of Bergen (October 1998).

  • Mykletun, S K Instrument for innsamling av trafikkdata Cand. scient. thesis at the Dept. of Physics, University of Bergen (August 1998)

  • Aksland, O Vasskuttmåling i fleirfasestraum ved hjelp av open ende koaksialprobe Cand. scient. thesis at the Dept. of Physics, University of Bergen (May 1998)

  • Lied, G Ø Dynamisk flerkammermodell av fordøyelsessystemet for laks Cand. scient. thesis at the Dept. of Physics, University of Bergen (May 1998)

  • Kirkedam, E Rekonstruksjonsalgoritmer i kapasitanstomografi Cand. scient. thesis at the Dept. of Physics, University of Bergen (May 1998)

  • Tørresdal, F Utvikling og verifisering av multi-elektrode kapasitanssensor Cand. scient. thesis at the Dept. of Physics, University of Bergen (April 1998)

  • Nordborg, S Verification tests for qualification of MFI Water Cut Meter as a fiscal meter at Tordis Gullfaks C Cand. scient. thesis at the Dept. of Physics, University of Bergen (April 1998)

  • Dahl, E O Quality Assurance System for the BSD-2000 Hyperthermia System Cand. scient. thesis at the Dept. of Physics, University of Bergen (January 1998)

  • Opedal H Integrert gammadensitometer og venturimeter for måling av væske-volumstrømning Cand. scient. thesis at the Dept. of Physics, University of Bergen (December 1997)

  • Bondhus A K Modelling of a capacitance sensor by the boundary element method Cand. scient. thesis at the Dept. of Physics, University of Bergen (October 1997)

  • Veseth O M Elektroteknisk analyse og modellering av en kompleks vekselstrøm til bruk i en ny kontinuerlig metode for vekselfelt demagnetisering Cand. scient. thesis at the Dept. of Physics, University of Bergen (August 1997)

  • Skre C D Åpen ende koaksial probe - Numerisk modellering med endelig element metoden Cand. scient. thesis at the Dept. of Physics, University of Bergen (July 1997)

  • Pedersen H Utvikling av målebord for industriell gammatomografi Cand. scient. thesis at the Dept. of Physics, University of Bergen (December 1996)

  • Andersson G Elevtenking om fysikkundervisningen i den videregående skole Cand. scient. thesis at the Dept. of Physics, University of Bergen (December 1996)

  • Helle I Slip sensing for hand prosthetics and development of a prototype slip sensor Cand. scient. thesis at the Dept. of Physics, University of Bergen (January 1996)

  • Saleem M To design and construct an optical instrument for measuring pollution in diesel oil Cand. scient. thesis at the Dept. of Physics, University of Bergen (November 1995)

  • Ocaya M A control system for the UoB two-component flow-rig MSc thesis at the University of Botswana/ Dept. of Physics, University of Bergen (November 1995)

  • Varughese B S Detection of red dye in diesel oil Cand. scient. thesis at the Dept. of Physics, University of Bergen (October 1995)

  • Andersen D H Utvikling av elektromagnetisk måler med kapasitivt koplede elektroder for hastighetsmåling i flerfasestrømning Cand. scient. thesis at the Dept. of Physics, University of Bergen (October 1995)

  • Lothe D Måling på tofase rørstraum -ei analyse basert på krysskorrelasjon, venturimeter, gammadensitometer og tomografi Cand. scient. thesis at the Dept. of Physics, University of Bergen (September 1995)

  • Vallestad A Nivåmåling i gravitasjonsseparatorer med gammastråletomografi Cand. scient. thesis at the Dept. of Physics, University of Bergen (August 1995)

  • Hauan N P Control of a nonlinear multivariable and coupled process Cand. scient. thesis at the Dept. of Physics, University of Bergen (June 1995)

  • Skoglund T O Hurtig pulsformingsforsterker for gammadetektorer med scintillasjonskrystall og fotodiode Cand. scient. thesis in physics, Department of Physics, University of Bergen (June 1995)

  • Hovstad O G Utvikling av lungesimulator basert på matematisk modellering Cand. scient. thesis at the Dept. of Physics, University of Bergen (December 1994)

  • Strandos S K Tilbakekoplet kapasitansdetektor basert på suksessiv approksimasjon Cand. scient. thesis at the Dept. of Physics, University of Bergen (December 1994)

  • Åbro E High-density semiconductor detectors for X-rays and gamma-rays Cand. scient. thesis at the Dept. of Physics, University of Bergen (October 1994)

  • Dico A S Separator imaging by using electrical capacitance tomographic technique Cand. scient. thesis at the Dept. of Physics, University of Bergen (October 1994)

  • Ringheim I Delta-Sigma modulator based measuring systems for capacitance tomography Cand. scient. thesis at the Dept. of Physics, University of Bergen (October 1994)

  • Brandt M Elektrisk impedans-tomografi - Hardware, software og avblidning Cand. scient. thesis at the Dept. of Physics, University of Bergen (July 1994)

  • Villanger Ø Krysskorrelasjonsbasert ultralyd strømningsmeter Cand. scient. thesis at the Dept. of Physics, University of Bergen (February 1994)

  • Pettersen K I Styring og regulering av håndproteser Cand. scient. thesis in physics, Department of Physics, University of Bergen (October 1993)

  • Svensen Y Radiofrekvensablasjon Cand. scient. thesis in physics, Department of Physics, University of Bergen (August 1993)

  • Rahman M M A cross-correlator for two component flow measurements using capacitance sensor. Cand. scient. thesis in physics, Department of Physics, University of Bergen (June 1993)

  • Ahadzi G Multi-component volume flow measurement using the venturimeter Cand. scient. thesis in physics, Department of Physics, University of Bergen (April 1993)

  • Rahulan T Possibilities and limitations of using Coriolis flowmeters. Cand. scient. thesis in physics, Department of Physics, University of Bergen (February 1993)

  • Halvorsen M Hastighetsmåling i vann-kontinuerlig flerfasestrøm ved bruk av induktiv sensor og korrelasjonsteknikker. Cand. scient. thesis in physics, Department of Physics, University of Bergen (December 1992)

  • Hernes A Optimalisering av eksiteringselektronikk for S-bandsensoren. Cand. scient. thesis in physics, Department of Physics, University of Bergen (December 1992)

  • Flølo D Upgrading the metering stations at the test separator at Gullfaks B. Cand. scient. thesis in physics, Department of Physics, University of Bergen (November 1992)

  • Kristiansen T S Magnetostrukturell analyse - metode for ikke-destruktiv testing av magnetisk og elektrisk ledende materialer. Cand. scient. thesis in physics, Department of Physics, University of Bergen (October 1992)

  • Ose S Muligheiter for bruk av eit ionisasjonskammer som støvvarslar. Cand. scient. thesis in physics, Department of Physics, University of Bergen (August 1992)

  • Thorvaldsen T J Måling og allokering i forbindelse med leieprosessering på Gullfaksfeltet. Cand. scient. thesis in physics, Department of Physics, University of Bergen (July 1992)

  • Øverland B A A process tomography system based on a four electrode capacitance sensor. Cand. scient. thesis in physics, Department of Physics, University of Bergen (June 1992)

  • Frøystein T Gamma-ray flow imaging Cand. scient. thesis in physics, Department of Physics, University of Bergen (April 1992)

  • Heegaard B M Geometriske aspekt ved to-fase rørstrøm. Cand. scient. thesis in physics, Department of Physics, University of Bergen (February 1992)

  • Jordal L Modellering av piezoelektriske krystallers vibrasjonsmønster basert på admittansmåling. Cand. scient. thesis in physics, Department of Physics, University of Bergen (December 1991)

  • Skrede T Digital demodulator for satellittkommunikasjon. Cand. scient. thesis in physics, Department of Physics, University of Bergen (October 1991)

  • Stalheim S O Ikke inntrengende induktiv sensor for måling av olje i vann. Cand. scient. thesis in physics, Department of Physics, University of Bergen (July 1991)

  • Vigdal P J Tetthetsmåling i boreslam ved bruk av piezoelektrisk transduser. Cand. scient. thesis in physics, Department of Physics, University of Bergen (April 1991)

  • Østerhus R Gas density measurements using equivalent impedance of ultrasonic transducers. Cand. scient. thesis in physics, Department of Physics, University of Bergen (February 1991)

  • Nybø H O Bestemmelse av forplantningsretning for akustisk emisjon signal ved hjelp av eit sett transdusarar på ei plate. Cand. scient. thesis in physics, Department of Physics, University of Bergen (November 1990)

  • Isaksen Ø Avbildning av tokomponent rørstrøm ved hjelp av kapasitanssensorer Cand. scient. thesis in physics, Department of Physics, University of Bergen (December 1989)

  • Hellesø O G Attgjeving av to-fase røyrstraum med gamma-tomografi. Cand. scient. thesis in physics, Department of Physics, University of Bergen (September 1989)

  • Islam M M To design and construct an optical scanning sensing system for cross correlation flow-meter. Cand. scient. thesis in physics, Department of Physics, University of Bergen (July 1989)

  • Crowo A Ultralydmåling i oljebasert boreslam. Cand. scient. thesis in physics, Department of Physics, University of Bergen (May 1989)

  • Tollefsen J Kapasitive sensorer for konsentrasjonsmåling. Cand. scient. thesis in physics, Department of Physics, University of Bergen (April 1989)

  • Storebø A K Numerical analysis of an ultrasoniv transit time flowmeter. Cand. scient. thesis in physics, Department of Physics, University of Bergen (March 1989)

  • Aspelund A Måling av gasstetthet ved bruk av optisk fiber. Cand. scient. thesis in physics, Department of Physics, University of Bergen (December 1988)

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