Surveillance and monitoring system for machine - includes detector and filters sensing specific frequencies of vibration and comparing these with stored values

摘要

The machine monitoring system uses a sensor (2) for detecting the vibrations of a machine (1). The sensor signals are amplified and sent to a series of banks of filters (11-12), each tuned to a significant frequency for the machine. The filter signals are rectified (13-14) and read by reading circuits (15-16). Digital processing of the signals allows their comparison with signals stored in memory during a previous operation of the machine. In the event of any discrepancy, adjustments are made to the controls of the machine (8), or its surroundings (9). USE - Automatic monitoring of correct operation of machine or tool.