Communications – electrical: acoustic wave systems and devices – Signal transducers – Underwater type
Patent
1988-06-28
1989-06-20
Steinberger, Brian S.
Communications, electrical: acoustic wave systems and devices
Signal transducers
Underwater type
367159, 367169, 310337, 310800, G01V 138
Patent
active
048414948
ABSTRACT:
Underwater piezoelectric arrangement in which it comprises two piezoelectric elements made of piezoelectric ceramic-polymer composites and juxtaposed to form a single layer structure, one of the element(s) having larger hydrophone constant than that of the other element(s), and by noise cancelling of the piezoelectric assembly there can be selectively detected only charges or voltages generated by acoustic waves which acts on each element.
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IEEE 1984 Ultrasonic Symposium Proceedings.
NGK Spark Plug Co. Ltd.
Steinberger Brian S.
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