DETECTION DEVICE, DETECTION METHOD, AND RECORDING MEDIUM HAVING PROGRAM FOR SAME RECORDED THEREON

摘要

Provided is a detection device with which it is possible to detect deterioration of a structure, without the use of harmonic amplitude. The device is provided with: an acquisition unit for acquiring waveform data pertaining to an elastic wave propagated through a structure; and a detection unit for estimating non-linear elastic compliance on the basis of the acquired waveform data pertaining to an elastic wave, and detecting deterioration of the structure from the non-linear elastic compliance.