316 メディアを考慮したAE信号の伝達特性について(G.S.3-4 生産加工・工作機械II)

概要

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An acoustic emission (AE) signal vary sharply according to the distance from source of signal to the sensor, a shape and a sort of material of the media and the method of installation. Furthermore, it is reported that the influence is remarkable due to the multiple reflection. In this study, the properties of AE signal and the influence of multiple reflection are discussed using a experiment device that has simple structure, in order to clarify the properties of propagation of AE signal. The result shows that the speed of a propagation of AE signals in the wood is compared with those both a plain carbon steel and plastic. Moreover, an AE signal is quite possible to avoid the reflected wave considering the propagation length of media.
一般社団法人日本機械学会の論文
2000-06-26