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:
Apr. 03, 2012
Filed:
Aug. 27, 2009
Mitsuhiro Kishino, Hadano, JP;
Hisashi Kudou, Fujisawa, JP;
Masayuki Ashizawa, Fuji, JP;
Hiromu Soya, Hiratsuka, JP;
Mitsuhiro Kishino, Hadano, JP;
Hisashi Kudou, Fujisawa, JP;
Masayuki Ashizawa, Fuji, JP;
Hiromu Soya, Hiratsuka, JP;
Jatco Ltd, Fuji-shi, JP;
Abstract
A failure detect device detects the presence of a failure in a peripheral member of a rotary shaft by analyzing a vibration generated in a device provided with the rotary shaft when the rotary shaft is rotated. A vibration detection unit detects the vibration of the device, and a rotation speed detection unit detects a rotation speed of the rotary shaft. An analysis unit calculates a frequency spectrum of the vibration of the device and determines an actually measured vibration level at each vibration order by dividing a frequency component of the calculated frequency spectrum by the rotation speed of the rotary shaft. A detection unit detects the presence of a failure in the peripheral member on the basis of the actually measured vibration level at each vibration order.