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Machine protection system for rotating equipment and method

  • US 6,505,143 B1
  • Filed: 01/20/2000
  • Issued: 01/07/2003
  • Est. Priority Date: 01/20/2000
  • Status: Expired due to Fees
First Claim
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1. A method of operating a machine protection system for rotating equipment, the method comprising:

  • (a) sensing vibration amplitude and phase of the rotating equipment;

    (b) controlling operation of the rotating equipment based on the vibration amplitude and phase;

    (c) determining the baseline vibration amplitude and phase data using a rolling average and variance and storing baseline vibration amplitude and phase data in a unit circle; and

    (d) comparing the sensed vibration amplitude and phase with the baseline vibration amplitude and phase data, wherein step (c) is practiced by storing separate baseline vibration amplitude and phase data according to an operating mode of the rotating equipment, and wherein step (d) comprises outputting a signal based on the comparison, step (b) being practiced by controlling the operation of the rotating equipment based on the signal output in step (d).

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