Sensibility abnormalness judging device of local output detector in reactor
专利汇可以提供Sensibility abnormalness judging device of local output detector in reactor专利检索，专利查询，专利分析的服务。并且PURPOSE: To judge the abnormalness at early time, by means of utilizing that the spectrum of noise component of the signal of local output detectors arranged at a plurality points within the same flow path of coolant in a BWR, is increased atended with the increasing of a void quantity in a special frequency zone.
CONSTITUTION: The noise signals are taken out form each of detectoed signals of local output detectors 4W7 (AWD) arranged at four points of the same flow path of coolant, and the devices 20W23 to be standardized by DC components of the signal, finds the intensity of the noise components by band pass filters 28W31 which can pass only a special frequency zone and sum of effective values 32W35. And the dimension is compared with comparators 36, 37, and if, for instant, the effective value of them at the comparator 36 may be RMSA≥RMSB, it is subjected to be judged that A or B of the local output detectors is abnormal, and the time except each of RMSA，下面是Sensibility abnormalness judging device of local output detector in reactor专利的具体信息内容。
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