Electric Motor Monitoring System

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Electronics, Sensors & Photonics
Electronics, Sensors & Photonics

University: Glasgow Caledonian University

Sector(s): Electronics, Sensors & Photonics, Energy & Renewables, Engineering & Manufacturing

About Opportunity:

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.

Easy Access Documents:

No Documents Attached

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