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Centrifugal unbalance detection system

  • US 6,350,224 B1
  • Filed: 07/17/2000
  • Issued: 02/26/2002
  • Est. Priority Date: 07/17/2000
  • Status: Expired due to Fees
First Claim
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1. A method for detecting load unbalances in large-scale centrifuges, the method comprising:

  • a. detecting a vibration through a signal from a sensor that is mounted on the centrifuge and senses vibrations;

    b. filtering the signal from the sensor to remove noise caused by normal operational vibrations;

    c. interpreting the amplitude and frequency of the filtered signal using an algorithm;

    d. counting the frequency cycles of the vibration when the amplitude of the signal exceeds a first threshold value; and

    e. shutting down the centrifuge if the number of frequency cycles during a predetermined time period exceeds a second threshold value.

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