Patent Number: 6,305,229

Title: Detecting fatigue from magnetic characteristics

Abstract: Fatigue in a magnetically sensitive detector element (20, 172) can be evaluated using the expression H.infin. log(N). Employing this method, measuring changes in magnetization of the detector element (20, 172) permit predicting fatigue with many practical applications.

Inventors: Inoue; Kiyoshi (Tokyo, JP)

Assignee: Tanaka Systems Incorporated

International Classification: G01B 7/16 (20060101); G01B 7/24 (20060101); G01L 1/12 (20060101); G01B 007/16 ()

Expiration Date: 10/23/2018