Flexural disk resonant cavity transducer

Details Flexural disk resonant cavity transducer Flexural disk resonant cavity transducer

H - Electricity

04

R

349/57

H04R 17/10 (2006.01) B06B 1/06 (2006.01)

Patent

CA 1294359

PHA 40 504 -14- 10-8-1987 ABSTRACT: Flexural dish resonant cavity transducer. Omnidirectional sonid transducers suitable for underwater operation as either hydrophones (listening devices) or projectors (sonic sources) are disclosed. The transducing device has a hollow resonant cavity with at least one flexural disk mounted therein in acoustic communication with both the interior and exterior of the cavity. The cavity also has at least one aperture providing acoustic coupling between the cavity interior and exterior, and a pliant lining covering substantially the entire cavity inner surface except for flexural disk surfaces and the aperture to detune the natural cavity resonance by reducing the rigidity of the cavity inner surface, thereby improving the overall frequency response characteristics of the transducing device.

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