| 摘要 |
<P>PROBLEM TO BE SOLVED: To make an erroneous determination hardly occur by setting a threshold value of eliminating influence of fitting-in, in an operation state inspection method of a rolling support device for determining that the rolling support device is abnormal when vibration strength detected by a vibration sensor exceeds the threshold value. Ž<P>SOLUTION: An inclination of a tangent of a graph of indicating a time change in the detected vibration strength is calculated, and the threshold value is set with the vibration strength as a reference when a sign of the calculated inclination changes in the first place. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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