Hydrophone structure and method

Details Hydrophone structure and method Hydrophone structure and method

H - Electricity

04

R

H04R 1/44 (2006.01) H04R 17/00 (2006.01)

Patent

CA 2187248

A hydrophone structure comprises a hydrophone casing within which is mounted a conductive substrate. Sound pressure signals are conducted into the interior of the substrate, on which are mounted piezoelectric crystals on the exterior of the substrate. The volume between the casing and the substrate is nearly filled with a fluid, preferably oil. One or more bubbles of air remain in the volume between the casing and the substrate to permit vibration of the substrate and consequently the piezoelectric hydrophone element.

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