Micro vibration is picked by sensor, then amplified to audible range and output to earphone or other devices such as frequency analyzer etc.
Sensor tip has M3 screw. It is changeable by 2 conductors for shape of vibration source.
It can pick up abnormal sounds(vibration increase) of rotors such as motors.
Abnormal condition is found by monitoring waveform via frequency analyzers etc.
Timely parts change can be done.
Application example2:Wall surface
Micro vibration beyond the wall can be picked up from wall surface.
Micro vibration such as leakage can be picked up from plumbing.