Aid device for setting inspection standard
A technology for inspection devices and support devices, which is applied to measuring devices, error detection/correction, and vibration measurement, and can solve problems such as multiple combinations, feature search, complicated parameter adjustment, and insufficient search
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[0075] First, a brief description will be given of an abnormal sound inspection device for setting a finally determined feature value and / or parameter using a support device according to an embodiment of the present invention. The basic structure of the abnormal sound inspection device is to preprocess the waveform data obtained by the vibration sensor or the sound microphone, calculate a plurality of predetermined feature quantities, and use the valid results from the calculation results to pass / fail / undecided judgment. Various types of filters such as band-pass filters, low-pass filters, and high-pass filters are prepared as the preprocessing filters, and a plurality of feature quantities to be calculated simultaneously are also prepared.
[0076] There are feature quantities that are effective for pass / fail judgment on the inspection object, and processing of calculating feature quantities that are not very effective may be wasteful. However, effective feature values dif...
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