The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 1990
Filed:
May. 27, 1988
Victor Demjanenko, North Tonawanda, NY (US);
Andres Soom, Williamsville, NY (US);
Yong H Lee, Tonawanda, NY (US);
Andrei Reinhorn, Williamsville, NY (US);
Tsu-Teh Soong, East Amherst, NY (US);
David M Benenson, Williamsville, NY (US);
James E Neil, Buffalo, NY (US);
Harish K Naidu, Williamsville, NY (US);
Selwyn Wright, Palo Alto, CA (US);
Other;
Abstract
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.