管材焊缝超声波检测中缺陷的定位

The Defect Location in Ultrasonic Testing of Weld on Pipe

摘要: 基于管材焊缝超声一次波检测中缺陷的定位公式, 分析了由探头K值和工件尺寸变化产生的定位误差, 指出几种减小定位误差的修正方法; 并对数字型仪器缺陷定位的原理及在实际检测中注意的问题进行了讨论。

Abstract: Based on the defect location formula of ultrasonic primary wave testing of weld on pipe, the location error caused by K value of angle probe or size of work piece were analyzed, and several correction methods were put forward. The principle of defect location by digital instrument and attention in actual testing were discussed as well.