The VSM type acceleration sensors from ifm can detect changes in vibration on the x, y and z axis. This spatial perception simplifies machine condition monitoring where forces and unbalances not only affect just one axis of motion, as is the case with motors and moving parts of the installation. The acceleration signal plays an important role in machine and plant condition monitoring. It is an indicator of various symptoms, such as unbalance, damaged bearings or crashes that may lead to machine failure or even irreparable damage. The detected raw data is transferred for further evaluation to an external device, such as the VSE diagnostic electronics from ifm.
Capacitive measuring principle
The acceleration sensors are based on a MEMS chip (capacitive measuring principle) and designed for demanding industrial applications. Thanks to MEMS technology, the sensor's proper functioning can be checked actively via the diagnostic electronics (self-test). The sensor transmits its data according to the IEPE signal, which is a standard on the market, e.g. for acceleration sensors. The advantage of IEPE devices is a constantly high sensitivity irrespective of the type of the connection cable or its length.