Vibration monitoring system and apparatus

摘要

An improved vibration monitoring system and apparatus are disclosed for monitoring rotating shafts, as in motors, pumps, blowers, generators, etc., and signaling the occurrence of an unsafe condition. The apparatus includes a vibration monitoring probe assembly of improved design which is mounted adjacent to a rotating shaft and to the method of attachment thereon. The probe assembly is supported on the fixed housing of the rotating shaft in insulated relation thereto and includes a probe element in spaced relation to the shaft for contact therewith upon occurrence of excessive vibration. A signal conditioner mounted near the probe assembly provides power to the probe and processes the signal and transmits it to the monitor. A remote monitor is provided which indicates excessive vibration in response to a signal from the probe. An electronic circuit is provided which detects and registers the excessive vibration on the monitor through a visual and audible alarm. The system also includes circuits for shutting down the rotating shaft upon occurrence of excessive vibration. A single monitor may register signals from several different probe assemblies and signal conditioners.