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| 热核聚变实验堆中超导母线绝缘层的红外热波检测 | |
| 引用本文： | 陈大鹏,曾智,张存林,金学元,张峥.热核聚变实验堆中超导母线绝缘层的红外热波检测[J].物理学报,2012,61(9):94207-094207. |
| 作者姓名： | 陈大鹏 曾智 张存林 金学元 张峥 |
| 作者单位： | 1. 北京航空航天大学材料科学与工程学院,北京,100191 2. 重庆师范大学物理与电子工程学院,重庆400047／首都师范大学物理系,北京市太赫兹波谱与成像重点实验室、太赫兹光电子学教育部重点实验室,北京100048 3. 首都师范大学物理系,北京市太赫兹波谱与成像重点实验室、太赫兹光电子学教育部重点实验室,北京100048 |
| 基金项目： | 国家自然科学基金联合基金(批准号: 61079020)和 输配电装备及系统安全与新技术国家重点实验室访问学者项目 (批准号: 2007DA10512710405)资助的课题. |
| 摘 要： | 本项研究的目的在于探索热核聚变实验堆中超导母线绝缘层的主动式 红外热波检测方法.文中用装有热水的薄膜袋对预埋脱黏缺陷的试件表面进行接触热激励; 给出了在面热源作用下长圆柱内一维瞬态导热的近似理论模型;通 过对理论模型的模拟和分析,发现对热波降温信号进行微分处理可有效提高缺陷和 非缺陷信号对比度;与闪光灯激励的结果进行比较,显示接触热激励的检测深度优于 闪光灯脉冲热激励. |
| 关 键 词： | 热核聚变实验堆 超导母线绝缘层 接触热激励 红外热波 |
| 收稿时间： | 2011-06-05 |
Infrared thermal wave imaging for inspecting the insulation layer of superconducting busbar in thermonuclear experimental reactor |
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| Chen Da-Peng,Zeng Zhi,Zhang Cun-Lin,Jin Xue-Yuan,Zhang Zheng.Infrared thermal wave imaging for inspecting the insulation layer of superconducting busbar in thermonuclear experimental reactor[J].Acta Physica Sinica,2012,61(9):94207-094207. | |
| Authors: | Chen Da-Peng Zeng Zhi Zhang Cun-Lin Jin Xue-Yuan Zhang Zheng |
| Institution: | 1. School of Material Science and Engineering, Beihang University, Beijing 100191, China;2. Institute of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 400047, China;3. Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Department of Physics, Capital Normal University, Beijing 100048, China |
| Abstract: | This work aims at developing a thermal wave imaging method for testing the insulation layer of superconducting busbar in thermonuclear experimental reactor. In the paper, a film bag filled with hot water is used to heat the sample surface. The approximate theoretical model of transient heat conduction under an instantaneous cylindrical surface source in cylindrical structure is given. Through simulation and analysis of the theoretical model, it is found that differential processing of the thermal cooling signals can improve the signal contrast between defects and non-defects areas. Compared with the flash pulse excitation method, the contact excitation method can detect deep defects. |
| Keywords: | thermonuclear experimental reactor busbar insulation layer contact heat excitation thermal wave imaging |
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