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Universitetet i Bergen
Audun Oppedal Pedersens bilde

Audun Oppedal Pedersen

Førsteamanuensis, Akustikk, Havteknologi
Institutt for fysikk og teknologi
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PHYS273 Marin akustikk (underviser)

PHYS114 Grunnleggjande målevitskap og eksperimentalfysikk (bidrag)

PHYS111 Mekanikk 1 (laboratorieansvarlig)

HTEK301 Utvalde emne innan havteknologi (bidrag)

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-...

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_...

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_Pederse...

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

Vitenskapelig artikkel
  • Vis forfatter(e) (2022). Finite-amplitude sound propagation effects in volume backscattering measurements for fish abundance estimation. Acta Acustica. 12 sider.
  • Vis forfatter(e) (2011). Petroleum technology supports fisheries management. Biophysics & Bioengeenering Letters. 7 sider.
Rapport
  • Vis forfatter(e) (2013). Power-budget and echo-integrator equations for fish abundance estimation. 10/2013. 10/2013. .
  • Vis forfatter(e) (2012). Instrumentering for trenging i not. Forstudie. .
Faglig foredrag
  • Vis forfatter(e) (2023). Light Weight Tomographic Monitoring of Pipe Wall Thickness.
  • Vis forfatter(e) (2022). Tomographic monitoring of wall thickness.
Vitenskapelig foredrag
  • Vis forfatter(e) (2023). Light-weight tomographic wall thickness mapping of pipes.
  • Vis forfatter(e) (2015). "Volume backscattering of finite-amplitude acoustic waves: Power flow, sampled volume, and scattering cross section".
  • Vis forfatter(e) (2012). Sonar and power budget equations for backscattering of finite amplitude sound waves, with implications in fishery acoustics for abundance estimation of marine resources.
  • Vis forfatter(e) (2009). "Nonlinear sound propagation fisheries research echo" sounders (abstract).
  • Vis forfatter(e) (2008). "Nonlinear sound propagation fisheries research echo sounders".
  • Vis forfatter(e) (2005). Consequences of non-linear sound propagation on target strength measurements - preliminary studies.
  • Vis forfatter(e) (2005). "Quantification of nonlinear sound propagation effects in fisheries research echo sounders".
  • Vis forfatter(e) (2005). "Nonlinear sound propagation effects in fisheries research echo sounders - Measurements and simulations in fresh water".
  • Vis forfatter(e) (2005). "Nonlinear effects in fisheries and research echo sounders and sonars".
  • Vis forfatter(e) (2005). "Nonlinear effects in a 200 kHz sound beam".
  • Vis forfatter(e) (2004). "Convergence and accuracy of the Bergen Code for investigating nonlinear effects in fishery echo sounders".
  • Vis forfatter(e) (2002). Simulations, design and measurements on a 1 MHz air-backed transducer.
Annet produkt
  • Vis forfatter(e) (2022). Method And Apparatus For Calculation Of Wall Thickness Variations. Patent US 11466983 B2. Application filed 2020-04-07.
Hovedfagsoppgave
  • Vis forfatter(e) (2002). Design og studier av lydkilde for SOBER-prosjektet.
Populærvitenskapelig artikkel
  • Vis forfatter(e) (2017). Combatting Corrosion. Oilfield Technology.
Doktorgradsavhandling
  • Vis forfatter(e) (2007). Effects of nonlinear sound propagation in fisheries research.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Vis forfatter(e) (2023). Light Weight Tomographic Monitoring of Pipe Wall Thickness.
  • Vis forfatter(e) (2022). Finite-amplitude sound propagation effects in fish abundance estimation. 3 sider.
Poster
  • Vis forfatter(e) (2023). Centre for research based innovation in marine acoustic abundance estimation and backscatter classification (CRIMAC).
  • Vis forfatter(e) (2005). Ikkelineær lydforplantning ved bruk av ekkolodd i firskeriforvaltning.

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Marin forskning
Research and Development (R&D)
Transducer design