| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for evaluating hub units and a method for evaluating the hub units in which the kind of damages in the hub units can be simply discriminated. SOLUTION: In the device for evaluating the hub units, a signal processing part 23 outputs frequency analysis signals which indicate a frequency analysis result of output signals at an acceleration sensor 1, fixed to a hub unit 2 with a magnet 18, by an FFT part 26 through an AD converting unit 24 and an envelope detecting unit 25; and an evaluation output part 28 evaluates a damage condition of the hub unit and outputs to a display part 27 based on a signal intensity at a specific frequency obtained from frequency analysis signals and an overall value. COPYRIGHT: (C)2009,JPO&INPIT
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