| 直流超导量子干涉器的无损检测研究 |
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| 引用本文： | 白世武,丁红胜. 直流超导量子干涉器的无损检测研究[J]. 无损检测, 2006, 28(8): 399-401 |
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| 作者姓名： | 白世武 丁红胜 |
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| 作者单位： | 1. 中国石油天然气管道科学研究院,河北廊坊,065000;天津大学,材料学院,天津,300072
2. 北京科技大学,应用科学学院,物理系,北京,100083 |
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| 摘 要： | 利用高温直流超导量子干涉器（DC SQUID）建立一套无损检测装置，对无磁不锈钢材料受到外力冲击后产生的剩余磁场进行了探测，利用电磁激励的方法，对有内部缺陷的铝板进行了试验研究，并对激励频率的选择进行了初步的讨论。
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| 关 键 词： | 直流超导量子干涉器 无损检测 磁场测量 |
| 文章编号： | 1000-6656（2006）08-0399-03 |
| 收稿时间： | 2005-06-15 |
| 修稿时间： | 2005-06-15 |
Application of Nondestructive Testing Based on DC Superconducting Quantum Interference Device |
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| BAI Shi-wu,DING Hong-sheng. Application of Nondestructive Testing Based on DC Superconducting Quantum Interference Device[J]. Nondestructive Testing, 2006, 28(8): 399-401 |
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| Authors: | BAI Shi-wu DING Hong-sheng |
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| Affiliation: | Pipeline Research Institute of China National Petroleum Corporation, Langfang Hebei 065000, China; Department of Physics, School of Applied Science, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | A nondestructive evaluation system based on DC Superconducting quantum interference device(DC SQUID) had been set up.Using the system the remnant magnetic field of a stainless steel sample crashed by force was tested.By electromagnetism excited,the magnetic field distribution on the surface of an aluminum slate with inner hole was measured.In addition the relation between SQUID response to defect and exciting frequency was discussed. |
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| Keywords: | DC Superconducting quantum interference device Nondestructive testing Magnetic field measurement |
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