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Calibration of simulation models for ultrasonic transducers based on implicit calibration
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.
Luleå University of Technology.
2009 (English)In: 2008 IEEE Ultrasonics Symposium: IUS ; Beijing, China, 2 - 5 November 2008, Piscataway, NJ: IEEE Communications Society, 2009, 1528-1531 p.Conference paper (Refereed)
Abstract [en]

There are numerous software packages available for modeling of the sound pressure fields emitted by ultrasound transducers and transducer arrays. Accurate modeling of a real-world transducer requires knowledge of several parameters that are generally not known. This paper presents an estimation principle that can be used to calibrate such models, based on measurements of the sound field. The model separates the problem into estimation of the transducer's electro-mechanical impulse response and its spatial impulse response. The latter being what the software packages generally model. We demonstrate the principle with measurements of the sound field from a non-focused 5 MHz transducer. The results show that the modeled sound field agrees well with measurements.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2009. 1528-1531 p.
, I E E E International Ultrasonics Symposium. Proceedings, ISSN 1051-0117
Research subject
Signal Processing
URN: urn:nbn:se:ltu:diva-30770DOI: 10.1109/ULTSYM.2008.0372Local ID: 4b2f51e0-48d1-11dd-a9fb-000ea68e967bISBN: 978-1-4244-2428-3OAI: diva2:1003999
IEEE International Ultrasonics Symposium : 02/11/2008 - 05/11/2008
Validerad; 2009; 20080703 (johanc)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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Carlson, Johan E.Hägglund, FredrikMartinsson, Jesper
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