A high sensitivity hydrostatic piezoelectric transducer based on transverse piezoelectric mode honeycomb ceramic composites

A new piezoelectric composite transducer based on the ceramic honeycomb structure is introduced. The transducer is operated in the transverse piezoelectric (TP) d/sub 31/ mode. The ceramic honeycomb configuration enables one to fabricate a TP honeycomb transducer by either embedding a honeycomb cera...

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Bibliographic Details
Published in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 1996-01, Vol.43 (1), p.36-43
Main Authors: Zhang, Q.M., Wang, H., Zhao, J., Fielding, J.T., Newnham, R.E., Cross, L.E.
Format: Article
Language:English
Subjects:
Ceramics
Composite materials
Honeycomb structures
Intelligent actuators
Piezoelectric transducers
Polymers
Shape
Skeleton
Technological innovation
Vibration control
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Summary:A new piezoelectric composite transducer based on the ceramic honeycomb structure is introduced. The transducer is operated in the transverse piezoelectric (TP) d/sub 31/ mode. The ceramic honeycomb configuration enables one to fabricate a TP honeycomb transducer by either embedding a honeycomb ceramic skeleton into a soft polymer matrix to form a composite or by blocking the openings of the honeycomb cells with thin layers of epoxy to form an end-capped honeycomb structure. With the unique honeycomb configuration and TP operation mode, the piezoelectric d/sub 33/ response of the ceramic is nearly eliminated and the piezoelectric responses from the three orthogonal directions add together when the transducer is subjected to a hydrostatic pressure. As a result, the transducer exhibits exceptionally high hydrostatic piezoelectric response.
ISSN:0885-3010
1525-8955
DOI:10.1109/58.484461