Other

Tsu-Teh Soong

Yong Hee Lee

Victor Demjanenko

Harish K Naidu

James E Neil

David M Benenson

Andres Soom

Andrei Reinhorn

Selwyn Wright

The invention provides a method and apparatus for diagnosing the mechanical condition of a machine. The method of the invention includes the following steps: sensing reference vibrational characteristics of a machine in the time domain; creating a reference signature from the reference vibrational characteristics; saving the reference signature; sensing test vibrational characteristics of the same machine in the time domain; creating a test signature from the test vibrational characteristics; automatically computing a measured distance between at least one point of the reference signature and at least one corresponding point on the test signature; automatically comparing the measured distance against a threshold value to determine if the machine is operating normally or abnormally; and providing a signal when the comparison indicates abnormal operation. An apparatus is also disclosed for implementing the method of the invention.

Method and apparatus for diagnosing the state of a machine

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East Amherst, NY, United States of America

Tsu-Teh Soong