Time-delay spectrometry for ultrasonic transducer characterisation
- 1 October 1986
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 19 (10), 834-843
- https://doi.org/10.1088/0022-3735/19/10/015
Abstract
The use of the technique of time-delay spectrometry in ultrasonic transducer characterisation is described for both transmitters and receivers. The principles of the technique, the choice of experimental parameters, and methods of instrumentation are outlined. Applications for measurement of the frequency response, linearity and directionality of miniature hydrophones, for transmitted field mapping, for finite receiver diffraction correction measurement, and alignment assessments are described and illustrated. Particular features of the technique are the continuous frequency response obtained, the high signal-to-noise ratio, and the ease of comparative measurements (e.g. for use in transducer batch production).Keywords
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