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视差法及CIVA仿真在数字射线检测缺陷深度定位中的应用 被引量:1

Application of Parallax Method and CIVA Simulation in Defect Depth Location of Digital Radiography Testing
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摘要 介绍了精确式视差法测量缺陷深度的原理,通过带缺陷试样的数字射线透照试验,结合CIVA软件仿真模拟,探究了该方法的可行性,分析了影响测量精度的因素。采用数字成像技术替代常规胶片成像技术,弥补了其检测效率低、测量困难、测量误差大等不足。同时引入了验证标记对测量结果进行准确验证,避免了因操作原因造成的定位误差。 In this paper,the principle of measuring the depth of defects by parallax method is introduced.Through the digital radiography testing with defective workpiece and CIVA simulation,the feasibility of the method is explored and the factors influencing the measurement accuracy are analyzed.Digital radiography technology makes up for the disadvantages of conventional film imaging technology such as low detection efficiency,difficulty in measurement,and large measurement error.At the same time,the verification mark is introduced to accurately verify the measurement result,and the positioning error caused by the operation is avoided.
作者 华雄飞 樊明岩 刘顺 林世昌 范义 HUA Xiongfei;FAN Mingyan;LIU Shun;LIN Shichang;FAN Yi(CGNPC Inspection Technology Co.,Ltd.,Suzhou 215021,China;Liaoning Hong Yan He Nuclear Power Co.,Ltd.,Dalian 116300,China)
出处 《无损检测》 2019年第5期14-17,72,共5页 Nondestructive Testing
关键词 射线检测 缺陷 深度定位 CIVA仿真 radiographic testing defect depth positioning CIVA simulation
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