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Conference proceeding
Beyond 40 MHz frontier: the future technologies for calibration and sensing of acoustic fields
Journal of physics. Conference series, v 1(1), pp 38-43
01 Aug 2004
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Abstract
Several techniques that are suitable for calibration of ultrasound hydrophones in the frequency range beyond 20 MHz are briefly reviewed. Attention is largely focused on substitution techniques because in contrast to the primary methods they are not as laborious and can be carried out relatively quickly. The techniques discussed include two acoustic procedures using swept frequency systems, an approach based on nonlinear propagation of acoustic waves in water medium, an acousto-optic technique that employs fiber optic sensors and a novel technique that is based on Time Reversed Acoustic (TRA) approach. It is shown that these techniques are capable of extending the frequency range in which the hydrophones can be calibrated up to 100 MHz. The importance of spatial averaging correction and its impact on the acoustic output measurements is also pointed out.
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Details
- Title
- Beyond 40 MHz frontier: the future technologies for calibration and sensing of acoustic fields
- Creators
- P Lewin (Corresponding Author) - Drexel UniversityS Umchid - Drexel UniversityA Sutin - Artann Laboratories, Inc.A Sarvazyan - Artann Laboratories, Inc.
- Publication Details
- Journal of physics. Conference series, v 1(1), pp 38-43
- Conference
- Advanced Metrology for Ultrasound in Medicine (AMUM 2004) (National Physical Laboratory, United Kingdom, 27 Apr 2004–28 Apr 2004)
- Publisher
- IOP Publishing
- Number of pages
- 6
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000228811800010
- Other Identifier
- 991019167993804721
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- Web of Science research areas
- Automation & Control Systems
- Biophysics
- Medicine, Research & Experimental