A ROTATIONAL SPEED MEASURING AND CALIBRATION SYSTEM BASED ON LASER DOPPLER VELOCIMETRY

• Abstract:

  A rotational speed measuring and calibration system based on the Laser Doppler Velocimetry is proposed in this paper. The rotational speed of a motor in the system can be determined by measuring the tangential linear velocity of a rotating reference disc mounted on the motor shaft with a Laser Surface Velocimeter. Measuring deviations caused by manufacturing and mounting errors of the reference disc are analyzed and compensated. Therefore, a measuring accuracy of better than 0.1% is realized.
• Keywords:

  rotational speed measurement, Laser Doppler Velocimetry, Laser Surface Velocimeter, signal processing, electrical drive
• Download:

  IMEKO-WC-2015-TC7-192.pdf
• DOI:

  _unreg_wc-2015.192

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