TOFD检测中变形波信号和非相关信号的识别
Identification Between Distortion Wave and Non-Correlation Signal in TOFD Inspection
摘 要
TOFD检测技术的难点之一是图谱识别和判读。针对TOFD检测图谱中的变形波信号进行了时差计算，并结合检测实例进行了展示和分析，以排除变形波和其它非相关信号的影响，从而正确识别和测定缺陷，避免误判。
非相关信号
变形波
图谱
TOFD inspection
Non-correlation signal
Distortion wave
Graph spectrum
Abstract
One of the key technologies for TOFD inspection is identification and interpretation for graph spectrum. According to the distortion wave signal in TOFD graph spectrum, the time difference calculation was done, and the influence of non-correlation signal and distortion wave was excluded as much as possible combining with the analysis of inspection cases. So the identification and measuration for defect was done correctly, and misjudgment of defect was also avoided.
中图分类号 TG115.28
所属栏目 试验研究
基金项目
收稿日期 2010/1/26
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备注陈业汉(1965-)，男，本科，高级工程师，长期从事锅炉压力容器无损检测研究工作。
引用该论文: CHEN Ye-Han,FAN Liang,SUN Xiao-Bing,ZHANG Xiao-Bin. Identification Between Distortion Wave and Non-Correlation Signal in TOFD Inspection[J]. Nondestructive Testing, 2011, 33(1): 37～41
陈业汉,范良,孙小兵,张晓斌. TOFD检测中变形波信号和非相关信号的识别[J]. 无损检测, 2011, 33(1): 37～41
被引情况:
【1】张东辉,刘丽丽,张树潇,杨会敏,赵天伟,房云龙, "TOFD检测平行扫查中变型波的识别与应用",无损检测 37, 54-56(2015)
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