Piezoelectric ultrasonic transducer with damped housing

Details Piezoelectric ultrasonic transducer with damped housing Piezoelectric ultrasonic transducer with damped housing

1977-08-25

1979-07-24

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310336, H01L 4110

Patent

active

041621115

ABSTRACT:
A high temperature ultrasonic transducer is described in which a piezoelectric crystal is held in contact with an acoustical diaphragm by a spring which also electrically couples the back face of the crystal to an electrical signal source. An oil film between the diaphragm and crystal provides an acoustical coupling. Air is used to insulate the spring electrical connection from the wall of the transducer.

REFERENCES:
patent: 2784325 (1957-03-01), Halliday et al.
patent: 3745829 (1973-07-01), Franchi
patent: 3890423 (1975-06-01), Zacharias, Jr.

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