Lu Xingyu. AN ANALYSIS ON ELIMINATING NOISE OF AE TEST BY SIMULATOR AND THE KAISER EFFECT[J]. Journal of Civil and Environmental Engineering, 1988, 10(2).
Lu Xingyu. AN ANALYSIS ON ELIMINATING NOISE OF AE TEST BY SIMULATOR AND THE KAISER EFFECT[J]. Journal of Civil and Environmental Engineering, 1988, 10(2). DOI: 10.11835/j.issn.1674-4764.1988.02.011.
利用模拟声源和Kaiser效应分析测AE试中的噪声排除问题
摘要
在利用Kaiser效应来测量地应力的过程中
如何排除来自试件端部的噪声是一个极为重要的问题。把泡沫垫片放在试件端面和加载板之间
可以解决这个问题。本文定量地测定了模拟声源发出的声波在泡沫片中传播时的衰减特性
并用Kaiser效应证明了用泡沫垫片消除噪声的可能性。
Abstract
In the utilization of the Kaiser Effect of AE as a method of estimating the gecstress in rock
it is very important to eliminate the noise induced at the ends cf a specimen
so sponge pads are put between the upper and lower end surfaces of specimens and bearing plates. In this paper
the attenuation behavior of sounds emitted by AE simulator and propagating in sponges are quantitatively measured. The eliminaion of noise by sponge effect is confirmed by the Kaiser Effect.