Audun Oppedal Pedersen
Position
Associate Professor, Acoustics, Ocean Technology
Affiliation
Teaching
PHYS273 Marine acoustics (teacher)
PHYS114 Basic Measurement Science and Experimental Physics (contributor)
PHYS111 Mechanics 1 (lab excercises)
HTEK301 Selected Topics in Ocean Technology (contributor)
Publications
Academic lecture
- Wei, Wang; Pedersen, Audun Oppedal; Lunde, Per (2025). Interaction of sound beams with fluidloaded solid plate at normal incidence: Influence of piston đť’Śđť’‚ numbers. (external link)
- Bøe, Yngve; Pedersen, Audun Oppedal; Forland, Tonje Nesse (2025). Salmon size estimation from wideband target strength measurements – a data processing pipeline with preliminary results. (external link)
- Plassen, Helge Brøndbo; Pedersen, Audun Oppedal; Pedersen, Geir (2025). Improving Partial-Wave Calibration of Broadband Transducers using FEM. (external link)
- Pedersen, Audun Oppedal; Instanes, Geir; Nagy, Peter B. et al. (2023). Light-weight tomographic wall thickness mapping of pipes. (external link)
- Lunde, Per; Pedersen, Audun Oppedal (2015). "Volume backscattering of finite-amplitude acoustic waves: Power flow, sampled volume, and scattering cross section". (external link)
- Lunde, Per; Pedersen, Audun Oppedal (2012). Sonar and power budget equations for backscattering of finite amplitude sound waves, with implications in fishery acoustics for abundance estimation of marine resources. (external link)
- Breen, Mike; Isaksen, Bjørnar; Ona, Egil et al. (2012). A review of possible mitigation measures for reducing mortality in purse-seine fisheries. (external link)
- Pedersen, Audun Oppedal; Lunde, Per; Korneliussen, Rolf et al. (2009). "Nonlinear sound propagation fisheries research echo" sounders (abstract). (external link)
- Pedersen, Audun Oppedal; Lunde, Per; Korneliussen, Rolf et al. (2008). "Nonlinear sound propagation fisheries research echo sounders". (external link)
- Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). "Nonlinear sound propagation effects in fisheries research echo sounders - Measurements and simulations in fresh water". (external link)
- Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). "Quantification of nonlinear sound propagation effects in fisheries research echo sounders". (external link)
- Tichy, Frank; Solli, H.; Klaveness, H. et al. (2005). "Nonlinear effects in a 200 kHz sound beam". (external link)
- Pedersen, Audun Oppedal; Lunde, Per; Vestrheim, Magne (2005). "Nonlinear effects in fisheries and research echo sounders and sonars". (external link)
- Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). Consequences of non-linear sound propagation on target strength measurements - preliminary studies. (external link)
- Pedersen, Audun Oppedal; Lunde, Per; Vestrheim, Magne (2004). "Convergence and accuracy of the Bergen Code for investigating nonlinear effects in fishery echo sounders". (external link)
- Pedersen, Audun Oppedal; Hobæk, Halvor (2002). Simulations, design and measurements on a 1 MHz air-backed transducer. (external link)
Other product
- Pedersen, Audun Oppedal; Instanes, Geir (2024). Method and apparatus for calculation of wall thickness variations. UK Patent GB 2593904 B.. (external link)
- Pedersen, Audun Oppedal; Instanes, Geir (2022). Method And Apparatus For Calculation Of Wall Thickness Variations. Patent US 11466983 B2. Application filed 2020-04-07.. (external link)
Article in business/trade/industry journal
Masters thesis
- Gjengedal, Gunnar Hole; Pedersen, Audun Oppedal; Tholo, Harald (2024). Investigation of measurements of the rate of dissipation of turbulent kinetic energy with ADCP. (external link)
- Moldrheim, Mads Skjerven; Pedersen, Audun Oppedal; Tholo, Harald (2024). Assessment of turbulence measurement methods for ADCP integration. (external link)
- Helleve, Matias; Pedersen, Audun Oppedal; Gjestland, Tormod et al. (2023). Study of near and far field measurements for underwater ship noise. (external link)
- Løland, Robert; Lunde, Per; Pedersen, Audun Oppedal et al. (2023). Triangulation method for measurement of fisheries echosounder two-way equivalent beam solid angle, 𝜓. Master thesis.. (external link)
- Thorbjørnsen, Aslak Jentoft; Pedersen, Audun Oppedal (2023). Investigation of nonlinear effects in piezoelectric discs and radiated sound field. (external link)
Poster
- Handegard, Nils Olav; Algrøy, Tonny; Eliassen, Inge Kristian et al. (2023). Centre for research based innovation in marine acoustic abundance estimation and backscatter classification (CRIMAC). (external link)
- Pedersen, Audun Oppedal; Vestrheim, Magne; Lunde, Per (2005). Ikkelineær lydforplantning ved bruk av ekkolodd i firskeriforvaltning. (external link)
Academic chapter/article/Conference paper
- Pedersen, Audun Oppedal; Instanes, Geir; Simonetti, Francesco et al. (2023). Light Weight Tomographic Monitoring of Pipe Wall Thickness. (external link)
- Pedersen, Audun Oppedal; Lunde, Per; Korneliussen, Rolf et al. (2022). Finite-amplitude sound propagation effects in fish abundance estimation. (external link)
Lecture
Academic article
- Pedersen, Audun Oppedal; Lunde, Per; Tichy, Frank et al. (2022). Finite-amplitude sound propagation effects in volume backscattering measurements for fish abundance estimation. (external link)
- Brix, Ole; Pedersen, Audun; Pedersen, Geir et al. (2011). Petroleum technology supports fisheries management. (external link)
Report
Doctoral dissertation
Thesis at a second degree level
See a complete overview of publications in Cristin.
A. O. Pedersen and G. Instanes, "Corrosion monitoring: From failure to success," World Oil, February 2024. ISSN 0043-8790.
A. O. Pedersen, G. Instanes, P. B. Nagy, and F. Simonetti, "Light Weight Tomographic Monitoring of Pipe Wall Thickness," Offshore Technology Conference, Houston, Texas, USA, 1-4 May 2023. https://doi.org/10.4043/32165-MS
A. O. Pedersen, P. B. Nagy, F. Simonetti, and G. Instanes, "Light-weight tomographic wall thickness mapping of pipes," presented at 46th Scandinavian Symposium on Physical Acoustics, Geilo, 29 January 2023.
A. O. Pedersen, P. B. Nagy, F. Simonetti, and G. Instanes, "Tomographic monitoring of wall thickness," presented at Underwater Technology Conference, Bergen, 15 June 2022.
A.O. Pedersen, P. Lunde, R. J. Korneliussen, and F. E. Tichy, "Finite-amplitude sound propagation effects in fish abundance estimation," presented at 45th Scandinavian Symposium on Physical Acoustics, Online, 31 Jan-1 Feb 2022.
A. O. Pedersen, P. Lunde, F. E. Tichy, and R. J. Korneliussen, "Finite-amplitude sound propagation effects in volume backscattering measurements for fish abundance estimation." Acta Acustica, 6, 14, 2022.
A. O. Pedersen and G. Instanes, “Method and apparatus for calculation of wall thickness variations,“ U.S. patent application 16,842,027, UK patent application 2005130.6, Norwegian patent application 20200425, 2020.
G. Instanes, A. O. Pedersen, and F. Simonetti, “Using Long-Range Microwaves to Detect Wet Insulation & Corrosion Residue to Mitigate CUI”, Presented at the 17th Middle East Corrosion Conference & Exhibition, Bahrain, 30 September–3 October 2018.
G. Instanes, A. O. Pedersen, and F. Simonetti, “Ultrasonic Computerized Tomography for Continuous Monitoring of Corrosion and Erosion Damage in Pipes”, Presented at the 17th Middle East Corrosion Conference & Exhibition, Bahrain, 30 September–3 October 2018.
F. Simonetti, G. Instanes, and A. O. Pedersen, “First field results of guided wave tomography for continuous monitoring of corrosion and erosion damage in pipelines”, In Proceedings of the 11th International Workshop on Structural Health Monitoring, September 12-14, Stanford CA, 2017.
A. O. Pedersen. Combatting corrosion. Oilfield Technology, January 2017. Available online: https://www.clampon.com/wp-content/uploads/2017/05/Combatting-Corrosion-Oilfield-Technology-January-2017.pdf
G. Instanes, F. Simonetti, P. B. Nagy, and A. O. Pedersen, “Corrosion-Erosion Monitoring Systems for Managing Asset Integrity”, presented at 16th Middle East Corrosion Conference and Exhibition, Bahrain, 2016.
F. Simonetti, P. B. Nagy, G. Instanes, and A. O. Pedersen, “Ultrasonic Computerized Tomography for Continuous Monitoring of Corrosion and Erosion Damage in Pipelines”, presented at EuroCORR 2016, Montpellier, 11–15 September 2016.
F. Simonetti, P. B. Nagy, A. Brath, C. L. Willey, G. Instanes, and A. O. Pedersen, “Ultrasonic Computerized Tomography for Continuous Monitoring of Corrosion and Erosion Damage in Pipelines”, presented at NACE CORROSION 2015 Conference and EXPO, Houston TX, 2015.
P. Lunde and A. O. Pedersen, “Volume backscattering of finite-amplitude acoustic waves: Power flow, sampled volume, and scattering cross section”, presented at 38th Scandinavian Symposium on Physical Acoustics, Geilo, Norway, February 2015. Available online: http://www.norskfysikk.no/nfs/faggrupper/akustikk2015/program.html
G. Instanes, F. Simonetti, and A. O. Pedersen, “Can a Corrosion Monitoring System with Tomography Provide Minimum Wall Thickness Readings?”, presented at Deep Offshore Technology (DOT), Houston, TX, USA, 22–24 October, 2013.
P. Lunde, A. O. Pedersen, R. Korneliussen, F. E. Tichy, and H. Nes “Power-budget and echo-integrator equations for fish abundance estimation”, Fisken og havet no. 10/2013, Institute of Marine Research, Bergen, Norway, 39 p.Available online: https://www.hi.no/hi/nettrapporter/fisken-og-havet/2013/fh_10-2013_echo_integrator
P. Lunde and A. O. Pedersen, “Sonar and power budget equations for backscattering of finite amplitude sound waves, with implications in fishery acoustics for abundance estimation of marine resources”, presented at 35th Scandinavian Symposium on Physical Acoustics, Geilo, Norway, 29 January–1 February, 2012. Available online:https://www.ntnu.edu/documents/14687435/14716676/SSPA_2012_Lunde_Pedersen_Finite_ampl_fishery_11p.pdf
M. Breen, B. Isaksen, E. Ona, A. O. Pedersen, G. Pedersen, J. Saltskår, B. Svardal, M. Tenningen, P. J. Thomas, B. Totland, and A. Vold, “A review of possible mitigation measures for reducing mortality caused by slipping from purse-seine fisheries", The International Council for the Exploration of the Seas (ICES) CM 100/2012.
R. J. Korneliussen and A. Pedersen, “Correction of historical multi-frequency data for nonlinear loss”, presented at the ICES Working Group on Fisheries Acoustic Science and Technology (WGFAST), Reykjavik, Iceland, 2011.
O. Brix, G. Pedersen, A. O. Pedersen, J. Spilde, G. Lied, and E. O. Dahl, “Petroleum technology supports fisheries management”, Biophysics & Bioengineering Letters 4(1), 2011.Available online: https://ojs.uniroma1.it/index.php/CISB-BBL/article/view/9156/0
G. Instanes, A. Pedersen, M. Toppe, and P. B. Nagy, “Constant group velocity ultrasound guided wave inspection for corrosion and erosion monitoring in pipes”. AIP Conf. Proc., 1096, pp. 1386–1393, 2009.Available online: https://doi.org/10.1063/1.3114119
J. Dalen, J. M. Hovem, H. E. Karlsen, P. H. Kvadsheim, S. Løkkeborg, R. Mjelde, A. Pedersen, and A. B. Skiftesvik, “Kunnskapsstatus og forskningsbehov med hensyn til skremmeeffekter og skadevirkninger av seismiske lydbølger på fisk og sjøpattedyr” (Knowledge status and research needs regarding adverse effects of seismics sound waves on fish and marine mammals). Report to the Directorate of Fisheries, Norwegian Petroleum Directorate, and Norwegian Pollution Control Authority. Bergen, 2008. ISBN 82-7257-661-9.
G. Instanes and A. O. Pedersen, “Leaking subsea valves; identification, quantification, and monitoring by using ultrasonic systems”, presented at SPE Asia Pacific Oil and Gas Conference and Exhibition, Perth, Australia, 20–22 October 2008.
A. Pedersen, “Effects of nonlinear sound propagation in fisheries research”. Doctoral thesis, University of Bergen, Norway, 2007. ISBN 978-82-308-0345-5. Available in BORA: http://hdl.handle.net/1956/2158
A. Pedersen, M. Vestrheim, and P. Lunde, “Quantification of nonlinear sound propagation effects in fisheries research echo sounders”. In Proc. Underwater Acoustic Measurements: Technologies & Results, Heraklion, Greece, 28 June–1 July, 2005.
A. Pedersen, M. Vestrheim, and P. Lunde, ”Nonlinear sound propagation effects in fisheries research echo sounders – Measurements and simulations in fresh water”. In Proc. 28th Scandinavian Symposium on Physical Acoustics, Ustaoset, Norway, 23–26 January, 2005.
A. Pedersen, “Design og studier av lydkilde for SOBER-prosjektet". Cand. scient. thesis, University of Bergen, Norway, 2002. Available in BORA: http://hdl.handle.net/1956/1698