US PATENT SUBCLASS 73 / 514.34
.~.~.~ Piezoelectric sensor

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

488  DF  SPEED, VELOCITY, OR ACCELERATION {29}
514.01  DF  .~ Acceleration determination utilizing inertial element {8}
514.16  DF  .~.~ Specific type of electric sensor or specific type of magnetic sensor {9}
514.34.~.~.~ Piezoelectric sensor

DEFINITION

Classification: 73/514.34

Piezoelectric sensor:

(under subclass 514.16) Subject matter wherein the sensing means comprises a pressure sensitive material which generates an electrical signal which is varied by the change in the property of the inertial member due to an acceleration of the body.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure,

311+, for a piezoelectric element or device, per se and especially subclass 329 for an inertial responsive piezoelectric device.