Journal article
Characterization of ultrasonic transducers using a fiberoptic sensor
Ultrasound in medicine & biology, v 20(7), pp 645-653
1994
PMID: 7810025
Abstract
The PVDF (polyvinylidene fluoride) hydrophones, commonly used to measure the characteristics of ultrasonic transducers, suffer from a number of drawbacks. They disturb the field distribution to be measured and cause spatial averaging effects because of their finite aperture. In addition, they are very delicate and susceptible to damage. To overcome some of these problems, the authors previously proposed the use of an optical fiber-based probe to measure the ultrasonic fields. In this paper, this fiberoptic ultrasonic sensor is used to measure the characteristics of six transducers, focused as well as unfocused, covering a frequency range of 2.25 MHz to 20 MHz. Results obtained using the fiberoptic sensor are compared with those obtained using a calibrated PVDF needle hydrophone with an effective diameter of 0.5 mm. The temporal responses as well as the beam profiles of the transducers measured using the fiberoptic sensor show excellent agreement with the results obtained using the PVDF needle hydrophone.
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Details
- Title
- Characterization of ultrasonic transducers using a fiberoptic sensor
- Creators
- Y.Q. Wu - Drexel UniversityP.M. Shankar - Drexel UniversityP.A. Lewin - Drexel University
- Publication Details
- Ultrasound in medicine & biology, v 20(7), pp 645-653
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering; School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:A1994PL46000008
- Scopus ID
- 2-s2.0-0028148228
- Other Identifier
- 991019174732504721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Acoustics
- Radiology, Nuclear Medicine & Medical Imaging