Electric Motor Monitoring

About

About Commutating electric motors emit RF arcing signals when the commutators make contact with brushes during motor operation. These RF signals can be captured using balanced or unbalanced screened loop antennas to provide good signal sensitivity. Captured RF signals can vary in frequency, width/time duration and amplitude based on key mechanical and electrical properties of the motor. This means that captured signals can be used to derive information regarding a number of motor properties, including: Rotational speed Torque/load Rotational axis eccentricity Testing of interpoles/compoles Motor belt integrity Brush integrity These parameters can be monitored and trended over time to provide an assessment of the motor health. The system also offers the capability for self-calibration and compensation factors for motor torque. Key Benefits Ability to trend key parameters permitting optimal motor performance to be determined Cost benefiits and efficiency savings through ability to plan preventative maintenance. Non-intrusive monitoring method which does not interfere with motor operation. Applications Manufacturing, production and testing sectors General asset management through motor condition monitoring.  IP Status The technology is protected by European Patent No 1468302.