Rotation of characteristic vectors with piezoelectric coupling

Details Rotation of characteristic vectors with piezoelectric coupling Rotation of characteristic vectors with piezoelectric coupling

1977-12-30

1979-09-25

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

333193, H01L 4110

Patent

active

041692365

ABSTRACT:
Acoustic ultrasonic waves are launched in a block of single-crystal mater, such as alpha-quartz, by means of a transducer fastened to one end of the block. The waves are steered by electrically altering the properties of the crystal between the piezoelectrically unstiffened and stiffened excitation modes.

REFERENCES:
patent: 3200354 (1965-08-01), White
patent: 3234488 (1966-02-01), Fair
patent: 3286205 (1966-07-01), Ballato
patent: 3304520 (1967-02-01), Auld
patent: 3321647 (1967-05-01), Tien
patent: 4117424 (1978-09-01), Coldren et al.

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