Diagnosing method of rotary machine
专利汇可以提供Diagnosing method of rotary machine专利检索，专利查询，专利分析的服务。并且PURPOSE:To reduce noises and to calculate an accurate index of deterioration by measuring the oscillation of rotary equipment, expressing its measurement signal as an autoregressive model, and calculating a power spectrum, and then calculating the probability of deterioration from the ratio (deterioration index) of effective values of the intensity and power spectrum at a specific frequency. CONSTITUTION:The oscillation of the bearing 3 of a motor is detected by a vibration meter 8, whose output signal is inputted to an arithmetic processor 10 through an AD converter 9 to perform specific arithmetic. Namely, the detection signal is composed of a superposition signal of various vibrations and an autoregressive expression is set to calculate an optimized power spectrum by a method of interaction; and the ratio of effective values of the intensity and power spectrum at the specific frequency of the power is calculated as the index of deterioration to calculate the probability of deterioration from the index of deterioration. Consequently, vibrations (noise) except vibrations due to abnormality are removed to calculate the accurate index of deterioration.，下面是Diagnosing method of rotary machine专利的具体信息内容。
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