DEFORMATION STAGE FOR QUANTITATIVE ACOUSTIC-EMISSION MEASUREMENTS

被引：0
作者：
LAWSON, L
机构：
来源：
SCANNING | 1995年 / 17卷 / 05期
关键词：
DEFORMATION STAGE; ULTRASONIC TRANSDUCER; ACOUSTIC EMISSION; SCANNING ELECTRON MICROSCOPY; FATIGUE; CRACK COALESCENCE;
D O I：
暂无
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A deformation stage capable of fully reversed fatigue loading for use in the scanning electron microscope (SEM) is described. This stage incorporates a novel surface displacement transducer for the detection of acoustic emission (AE) signals, which has a flat response over a wide band and can be used as a receiver up to 12 MHz. Also described is a method for analysis of these signals to obtain the size, speed, and location of the source event. A special grip geometry is introduced such that the dynamic Greens function describing the surface displacement at the transducer contains an initial p-wave delta function which is utilized to determine the source properties.
引用
收藏
页码：322 / 326
页数：5
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