Acceleration sensor with integrated sensitivity monitoring - contains piezoelectric element in one or more main axes, and operation is testable by stimulating flexural beam electrically or mechanically

摘要

The sensor has a piezoelectric element in one or more main axes sensitive to externally acting forces, esp. through dislocation of a flexible beam or similarly deflectable part. The sensitivity and functional monitoring are achieved by physical means. Testing involves using an electrical pulse to stimulate a flexural beam or mechanically stimulating a beam to vibrate. USE/ADVANTAGE - Sensor has integral sensitivity monitoring, i.e. physical sensor testing.