Leak-Detection Device, Program, and Control Method

摘要

A signal acquisition unit (2020) acquires a signal. From the signal acquired by the signal acquisition unit (2020), a detection signal extraction unit (2060) extracts, as a detection signal, a signal of any frequency band among a plurality of partial detection frequency bands into which the frequency band that is the subject of detection has been divided. A determination unit (2070) determines, in order, for each detection signal corresponding to each of the different partial detection frequency bands, whether the detection signal shows any leakage, and if at least a prescribed number of the detection signals are not showing any leakage, determines that leakage is not taking place.

主权项

1. A leak inspection device comprising:
signal acquisition unit that acquires a signal; inspection signal extraction unit that extracts, as an inspection signal, a signal in any of a plurality of partial inspection frequency bands obtained by dividing a frequency band as an inspection target, from the signal acquired by the signal acquisition unit; and determination for unit that sequentially determines whether the inspection signals corresponding to the partial inspection frequency bands which are different from one another indicate a leak or not and, when predetermined number or more of the inspection signals do not indicate a leak, determining that there is no leak.