Piezoelectric pressure transducer with threaded damper bar

Details Piezoelectric pressure transducer with threaded damper bar Piezoelectric pressure transducer with threaded damper bar

1981-04-10

1983-10-18

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310338, H01L 4108

Patent

active

044108257

ABSTRACT:
A pressure transducer is provided with a housing in which is mounted a pressure sensitive piezoelectric crystal for converting pressure changes of a rapidly moving gas to electrical signals. The crystal is mounted within the housing in a floating manner by a brass damping bar which damps extraneous acoustic oscillations. The hollow interior of the housing is filled with beeswax that surrounds the damping bar and the piezoelectric crystal, so that any parasitic oscillations arising from housing wall are damped.

REFERENCES:
patent: 2736823 (1956-02-01), Sheppard et al.
patent: 3553501 (1971-01-01), Thill
patent: 3925692 (1975-12-01), Leschek et al.
patent: 3935484 (1976-01-01), Leschek et al.
patent: 3979700 (1976-09-01), Groce
patent: 4316115 (1982-02-01), Wilson et al.

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