Tape cast multilayer sonar transducer
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United States of America Patent
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app pub date -
Jun 22, 2015
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Dec 23, 2010
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Abstract
A tape cast transducer element assembly comprises a tape cast transducer element including a multi-layer piezoelectric stack diced from a sintered piezoelectric body formed from a plurality of thin film tape layers, the film thin tape layers sintered to produce a final density. A conductive film coats select ones of the thin film tape layers such that conductive layers of different polarities are exposed on opposing sides of the multi-layer piezoelectric stack. Electrodes are coupled to the conductive layers. Electrical leads are coupled to each electrode. A head mass is configured to encapsulate a top portion of the stack. A tail mass is configured to encapsulate a bottom portion of the stack. At least one coupling arrangement extends from a top surface of the head mass through the cross-sectional area of the head mass into the tail mass such that the stack is contained in a rigid assembly under compression.
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