长管拖车气瓶声发射信号的传播衰减规律  

作　　者：郑晖 王勇[1] 刘三江[1] 李邦宪[1] 

机构地区：[1]中国特种设备检测研究中心,北京100013

出　　处：《中国特种设备安全》2006年第11期43-45,共3页China Special Equipment Safety

摘　　要：本文主要探讨了声发射信号在长管拖车气瓶中的传播衰减规律,测定了实际的距离衰减关系,并采用数值分析方法推导出了曲线拟合方程式,可以方便的从声发射探头采集到的信号幅度反推出信号源的幅度大小,在分析定位源强度、定位方法研究方面有重要意义。The paper Mainly discusses the attenuation rule of AE signal when spreading in the wall of the tube trailer. A Curve fitting formula is obtained by analyzing and computing the actual distance and the attenuation of AE signal. With the formula, we can easily estimate the relationship between the module value of the AE source from the module value received by the AE sensor. This is important for researching the intension of AE source and orientation methods in the AE technology.

关 键 词：长管拖车气瓶 声发射 衰减 曲线拟合 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置]