AE Source Wave Analysis

概要

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In this paper the authors presented a computational method to de termine the original waveforms at source points where acoustic emission (AE) is generated. Using a fast electrical pulse as a standard input signal, it has become possible to obtain the reproducible transfer function of AE measuring system from the generation of AE to the detection of received signals. By introducing the numerical operations to minimize noise and distortion which are often contained in analyzed waveforms, Fourier synthesis has been made applicable to an inverse problem such as source wave analysis. Consequently the authors have been able to obtain reproducible source waves with higher accuracy in considerably short time of calculation. A few experiments to determine source waves were carried out and the results showed the validity of the method.
一般社団法人日本機械学会の論文