作者：

作者单位：

刊名：HIGH-PERFORMANCE Composites

ISSN：1081-9223

出版年：2008-01-05

卷：16

期：5

起页：68

止页：68

分类号：TQ175

语种：英文

关键词：

内容简介

Ultrasonic nondestructive inspection methods are based on the principle of wave propagation through a solid medium. A transmitter emits a sound wave, above the range audible to humans, that excites the structure, while the same (or a second) transducer picks up the resulting structural waves. In a typical setup, a C-scan, transducers are positioned on both sides of a part in "through transmission" mode. A robot or other automated system moves the transducers over the part, in line with each other and perpendicular to the part surface to create a two-dimensional map of flaws. C-scans, however, take time. Scanning a large part can consume many hours, and scans of parts with contours or varying thickness require additional programming to account for shape changes. Imperium Inc. (Silver Spring, Md.) now offers a variation - an easily understood, real-time ultrasound camera system.