Analysis of Ultrasonic Inspection Data Error of Heavy Water Reactor Pressure Tube
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摘要: 对核电站压力管前后两次在役检查缺陷数据变化的原因进行了分析，认为缺陷表面不平整和检查系统误差是影响检查精度的主要因素，两者共同作用使检查数据服从正态分布规律。经过分析，得到缺陷并未明显扩展的结论。Abstract: After analyzing the reasons for the change of defect datum from in-service inspections of the nuclear power plant pressure pipe, it was concluded that surface roughness and the system error were the main factors of affecting inspection accuracy, both of them made the inspection datum comply with the normal distribution rule. After analysis, The conclusion that the flaw defects had not significantly extended was gotten.
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Keywords:
- Heavy water reactor /
- Pressure tube /
- Ultrasonic inspection /
- Data error analysis
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[1] 郑晖，林树青.超声检测［M］.北京：中国劳动社会保障出版社,2008:171-172. [2] 美国无损检测学会.美国无损检测手册·超声卷(下册)［M］.北京：世界图书出版公司,1996:90-93. [3] 盛骤，谢式千，潘承毅.概率论与数理统计［M］.北京：高等教育出版社,1989:99-111.
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