Longitudinal acoustic wave radiated from an arched interdigital transducer
- 1 August 1981
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 52 (8) , 5386-5388
- https://doi.org/10.1063/1.329401
Abstract
An arched interdigital transducer has been devised for acoustic imaging uses. Two kinds of acoustic beams are radiated into water from the transducer, one of which is radiated at a constant angle independent of the frequency change. The other has a frequency-dependent radiation angle. The two beams follow conical paths and come to a focus on the axis of the arc. The arched transducer with 45 ° aperture angle, consisting of 10 finger pairs, has a conversion loss of about 10 dB and about 150-μm beamwidth for 3 dB down values, at 22.7 MHz.This publication has 5 references indexed in Scilit:
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