| 巨磁阻传感器在管道漏磁检测中的应用 |
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| 引用本文： | 李亮,阙沛文,陈亮.巨磁阻传感器在管道漏磁检测中的应用[J].仪表技术与传感器,2005(12):44-46. |
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| 作者姓名： | 李亮 阙沛文 陈亮 |
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| 作者单位： | 上海交通大学自动检测研究所,上海,200030 |
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| 基金项目： | 国家“八六三”计划资助项目（2001AA602021） |
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| 摘 要： | 磁性传感器在无损检测中已经有了很大的应用，与传统的磁性传感器相比，巨磁阻传感器有着灵敏度高、可靠性好、测量范围宽、体积小，价格低等优点。介绍了巨磁阻传感器及其在输油管道缺陷漏磁信号检测中的应用，表明采用巨磁阻传感器的检测系统可以检测到管道壁上的微小缺陷。
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| 关 键 词： | 漏磁法 巨磁阻传感器 管道漏磁检测 无损检测 |
| 文章编号： | 1002-1841（2005）12-0044-03 |
| 收稿时间： | 2004-04-15 |
| 修稿时间： | 2005-05-31 |
Application of Magnetic Flux Leakage Method in Pipeline Based on Giant Magneto-resistance Sensor |
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| LI Liang,QUE Pei-wen,CHEN Liang.Application of Magnetic Flux Leakage Method in Pipeline Based on Giant Magneto-resistance Sensor[J].Instrument Technique and Sensor,2005(12):44-46. |
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| Authors: | LI Liang QUE Pei-wen CHEN Liang |
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| Affiliation: | Institute of Automatic Detection, Shanghai Jiaotong University, Shanghai 200030, China |
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| Abstract: | Magnetic field sensors have been applied in nondestructive testing.Compared to most conventional sensors,Giant Mag- neto-resistance(GMR)sensor has the advantage of the high sensitivity and frequency dependence,wide measure range,small bulk,low price.Presented a method of detect surface and sub-suface flaws in ferromagnetic pipeline.The result shows the magnetic flux leakage method based on GMR sensor can detect the small flaws of pipeline wall. |
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| Keywords: | Magnetic Flux Leakage Giant Magneto-resistance Sensor |
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