| 地下金属管线无损检测仪中涡流传感器的阻抗分析 |
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| 引用本文： | 李伟锋,秦勇,周彤,周真. 地下金属管线无损检测仪中涡流传感器的阻抗分析[J]. 传感技术学报, 2011, 24(6): 843-847. DOI: 10.3969/j.issn.1004-1699.2011.06.013 |
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| 作者姓名： | 李伟锋 秦勇 周彤 周真 |
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| 作者单位： | 1. 哈尔滨理工大学测通学院，哈尔滨150080;测控技术及仪器黑龙江省高校重点实验室，哈尔滨150080
2. 黑龙江省计量检定测试院,哈尔滨,150036 |
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| 基金项目： | 基于雷达探测的管线测试技术研究 |
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| 摘 要： | 根据电磁涡流检测原理，对地下金属管线无损检测仪中的涡流传感器进行设计，并针对无损检测仪中涡流传感器线圈结构参数对传感器性能的影响进行分析。建立空心线圈的有限元模型，对线圈尺寸影响因素进行了分析。针对不同的结构参数，确定磁芯半径与传感器线圈阻抗变化的关系式，确定传感器线圈参数对于传感器线性度和灵敏度的影响，为涡流传感器的...
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| 关 键 词： | 电磁场与微波技术 涡流传感器 有限元分析 阻抗解析表达式 地下金属管线检测仪 |
Impedance Analysis of eddy-current Transducer in the system of non-destructing detecting the underground metal pipe |
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| LI Weifeng,QIN Yong,ZHOU Tong,ZHOU Zhen. Impedance Analysis of eddy-current Transducer in the system of non-destructing detecting the underground metal pipe[J]. Journal of Transduction Technology, 2011, 24(6): 843-847. DOI: 10.3969/j.issn.1004-1699.2011.06.013 |
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| Authors: | LI Weifeng QIN Yong ZHOU Tong ZHOU Zhen |
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| Affiliation: | 1,21.School of Measure-Control Technology and Communication Engineering,Harbin University of Science and Technology,Harbin 150080,China;2.The Higher Educational Key Laboratory for Measuring & Control Technology and Instrument of Heilongjiang Province,Harbin University of Science and Technology,Harbin 150080,China;3.Heilongjiang Provincial Institute of Measurement and Verification,Harbin 150036,China |
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| Abstract: | According to the electromagnetic theory,we designed a eddy-current Transducer in the system of non-destructing detecting the underground metal pipework,and settled a matter that the structural parameter of the inductance sensor ’ s coil affects the function of the sensor.The finite element model of the air core coil was proposed and the influential factors of conductor size is analyzed.According to different structural parameters,the relation of the permeability of the ferrite core and the coil impedance of eddy-current Transducer can be formed and explained perfectly.Moreover,the effects of the sensor coil ’ s parameter on the linearity and the sensitivity of the sensor can also be established.All these offered a reference to help the design of the structural parameters of the inductance sensor ’ s coil. |
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| Keywords: | electromagnetic field and microwave technology eddy-current transducer analysis of finite element impedance analytical expression underground metal pipework detector |
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