OSCILLATION DETECTION DEVICE

摘要

PURPOSE: A vibration detector is provided to recognize the amount of the external force corresponding to each frequency by converting the external force into the voltage and outputting the voltage as signals corresponding to frequency bands. CONSTITUTION: A vibration detector comprises a detecting part(20) and a measuring part(30). The detection part converts the pressure change applied on an object into the voltage and outputs the voltage. The measuring part measures the voltage outputted from the detection part. The measuring part comprises a filter part(34) which passes the voltage through frequency bands. The detection part and the measuring part are mounted on the same circuit board.