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Simple test to show if encoder is functional

  • June 2016
  • Number of views: 5240
  • Article rating: No rating

Pat Douglas
Kirby Risk-Mechanical Solutions & Service

An encoder is a type of feedback device that is often installed on a motor to monitor the motion (simple optical). A quadrature encoder indicates both motion and direction of the motor output shaft. 

Figure 1 indicates a good digital waveform.  Figure 2 indicates a noisy digital waveform. Both are scans from an oscilloscope used in a service center.

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