高速摄像技术在驱动线落棒实验中的应用  

Application of high-speed digital camera in control rod drive line drop performance experiment

作　　者：张朝柱[1] 顾汉洋[1] 刘刚[2] 陈宇清[2] 周肖佳[2] 

机构地区：[1]上海交通大学核科学与工程学院,上海200240 [2]上海核工程研究设计院,上海200233

出　　处：《核技术》2014年第9期55-60,共6页Nuclear Techniques

摘　　要：控制棒落棒性能分析是驱动线设计验证的重要部分。本文在AP1000控制棒驱动线落棒实验中,应用高速摄像仪拍摄落棒历程,并提出了一种结合数字图像相关和亚像素插值的方法,用于处理拍摄的图像。基于此种方法,获得了精确的控制棒棒位-时间、速度-时间、加速度-时间曲线,有利于验证和改进控制棒驱动线设计。Background： Control rod drop performance is essential for safety analysis of nuclear power plant. Purpose： To validate the design of control rod drive line （CRDL）, a high-speed digital camera is used to record the control rod drop course in AP1000 CRDL drop performance experiment. Methods： The recorded video images are analyzed by a digital image processing method which includes digital image correlation and sub-pixel algorithm. Results： Based on such approach, the relationships of control rod＇s position, velocity and acceleration with time are obtained. Conclusion： This approach has high accuracy theoretically and will be useful for validating and improving the design of CRDL.

关 键 词：控制棒驱动线 落棒特性试验 高速摄像仪 数字图像相关 亚像素插值 

分 类 号：TL364[核科学技术—核技术及应用]