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Abnormality Diagnosing Apparatus and Abnormality Diagnosing Method

  • US 20080234964A1
  • Filed: 09/13/2005
  • Published: 09/25/2008
  • Est. Priority Date: 09/13/2004
  • Status: Active Grant
First Claim
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1. A abnormality diagnosing apparatus used in a machine equipment including a rotating or sliding part relative to a stationary member, the abnormality diagnosing apparatus comprising:

  • a detecting portion fixed to the rotating or sliding part or the stationary member and including at least one vibration system sensor of a vibration sensor, a sound sensor, an ultrasonic sensor and an AE sensor; and

    a temperature sensor; and

    a signal processing portion for determining a state of the part from a detecting signal outputted by the detecting portion;

    wherein the signal processing portion determines presence or absence of a abnormality of the part, or presence or absence of the abnormality of the part and a degree of a damage based on a combination of a measured result by the vibration system sensor and a measured result by the temperature sensor.

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