Eddy current testing is one of the five major routine nondestructive testing methods and it is convenient, fast and suitable for online detecting of the surface flaw of steel balls.
电涡流检测是五大常规无损检测方法之一，检测方便、快捷，适合用于钢球表面裂纹的在线检测。
This paper describes the features, principle and sorting method of the photoelectric sensor for surface flaw detection.
本文概述了表面缺陷光电传感器的特点、原理和分类方法。
Alternative magnetic leakage flux method was developed from the eddy current testing and traditional magnetic leakage flux testing, and it was advantageous for surface flaw recognition.
交变漏磁检测方法由于兼具涡流检测和传统漏磁检测的特点，对表面缺陷具有很高的识别率。
Assessment results showed that all assessment points were located within the failure lines of analysis level 1 and 2. So the pipeline structure with surface flaw at the weld toe was safe.
评定结果表明，不论是采用一级或是二级评定，各评定点均在评定曲线定义的范围内，说明该结构是安全的。
The influence of copper foil surface quality on electrical performance of power transformer is analyzed, the key technology for monitoring the surface flaw with machine vision system is studied.
分析铜箔表面质量缺陷对电力变压器电气性能的影响，研究采用机器视觉系统对铜箔表面质量缺陷监视的关键技术。
The influence of copper foil surface quality on electrical performance of power transformer is analyzed, the key technology for monitoring the surface flaw with machine vision system is studied.
分析铜箔表面质量缺陷对电力变压器电气性能的影响，研究采用机器视觉系统对铜箔表面质量缺陷监视的关键技术。
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