Defect analysis device, defect analysis system, efect analysis method, and computer readable recording medium

摘要

To highly accurately determine whether there is a defect in a pipe. This defect analysis device has: a frequency determining unit, which determines a first frequency band on the basis of first vibration generated from a first point within a predetermined range from the installation point of a vibration detection unit that is capable of detecting vibration generated in a pipe, determines a second frequency band on the basis of second vibration generated from a second point that is different from the first point, and determines a leakage frequency band on the basis of the first frequency band and the second frequency band; and a signal processing unit that determines a defect between the first point and the second point on the basis of the vibration level of vibration in the leakage frequency band.