Piezoelectric sensor for monitoring kinetic momentum

Details Piezoelectric sensor for monitoring kinetic momentum Piezoelectric sensor for monitoring kinetic momentum

1987-11-16

1991-10-01

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310324, 310344, 310345, H01L 4108

Patent

active

050536710

ABSTRACT:
A piezoelectric kinetic momentum sensor employs a thin oscillable diaphragm member on which a thin plate form piezoelectric sensor element is mounted. The entire circumferential edge of the oscillable diaphragm member is supported by the sensor casing. To avoid fluctuation of sensitivity due to the exerting direction of kinetic energy, the diaphragm member and the piezoelectric sensor element are formed in a coaxial thin disc shaped configuration, in the preferred construction. In the further preferred construction, the sensor casing is composed of two seperable bottomed cylindrical components, each of whcih has its circumferential cylindrical wall section free edge mating with the other. The circumferential edge of the diaphragm member is sandwiched between the mating free edges of the cylindrical components to define a sealed and enclosed internal space within the sensor casing.

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