Piezoelectric transducers and methods of manufacture

Details Piezoelectric transducers and methods of manufacture Piezoelectric transducers and methods of manufacture

2005-11-22

2005-11-22

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S331000, C347S068000

Reexamination Certificate

active

06967431

ABSTRACT:
A system and method of operation for a piezoelectric transducer is described which utilizes a mesa structure interposed between a piezoelectric material element and a chamber diaphragm. The mesa structure may further comprise a series of mesa openings at least partially filled with adhesive and mesa grooves. The system can be used as a sensor where a net motion to the diaphragm causes a net charge equal to the sum of the charges on each piezoelectric diaphragm. Alternatively, the system can be used as an actuator wherein an applied voltage causes movement of the piezoelectric transducer and the chamber diaphragm.

REFERENCES:
patent: 4613875 (1986-09-01), Le et al.
patent: 6476336 (2002-11-01), Takeuchi et al.
patent: 6495945 (2002-12-01), Yamaguchi et al.
patent: 6584660 (2003-07-01), Shimogawa et al.
patent: 6734603 (2004-05-01), Hellbaum et al.
patent: 0 787 588 (1997-08-01), None
patent: 0 803 918 (1997-10-01), None

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