DETECTING ACOUSTIC EMISSION IN PRESENCE OF HYDRAULIC NOISE

被引：3

作者：

HUTTON, PH

机构：

[1] Senior Development Engineer, NDT Methods Development, Battelle Memorial Institute Pacific Northwest Laboratory, Richmond

来源：

NON-DESTRUCTIVE TESTING | 1969年 / 2卷 / 02期

关键词：

D O I：

10.1016/0029-1021(69)90156-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The acoustic emission produced as metals deform and fracture can be used to monitor the integrity of nuclear reactor pressure boundaries, as long as the emission data can be separated from background noise. Tests have shown that a sensing system using shear-wave sensors in the frequency range 1.5-2.5MHz can detect acoustic emission in the presence of turbulent flow and cavitation noise, and at distances of at least 3ft (1m) from the signal source. Further work is needed to improve the sensing technique, establish the maximum distance at which an emission signal can be reliably detected, and adapt the technique for practical use. © 1969.

引用

页码：111 / &