ACOUSTIC EMISSION EXPLORATING DEVICE FOR VIBRATION SOURCE USING A PIEZOELECTRIC SENSOR

摘要

The present invention relates to the acoustic inspection instrument of dynamic behavior vibration source using a piezoelectric sensor, and is mounted on the vibration source PZT piezoelectric sensor for sensing switch the state of change of a vibration source according to vibration of the vibration source to an electrical signal, PZT piezoelectric and an amplifier for amplifying receiving the sensing signal of the sensor, and a filter for filtering a noise of the sensing signal is amplified by the amplifier. Through a signal transmitted via the filter and a computer for reading a state of change of the vibration source.