These sensors are also called eddy current, displacement or distance sensors, and are used for measuring shaft movements and internal clearances in plain bearings.
For example, the vibrations of a drive shaft relative to slide bearings or other supporting parts can be measured.
Velocity sensors are used for monitoring vibrations and for balancing rotating machines.
This type of sensor has a lower sensitivity to high-frequency vibrations than accelerometers and is therefore less prone to overloading.
An accelerometer can be used for both high and low frequency vibration measurements. The sensor converts dynamic vibrations to a voltage.
These are full-contact sensors that are placed directly on the object to be measured, such as a bearing housing or gearbox.