| 基于磁阻传感器的漏磁信号检测电路研究 |
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| 引用本文： | 孙剑,方旭东.基于磁阻传感器的漏磁信号检测电路研究[J].黄山学院学报,2011,13(5):20-23. |
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| 作者姓名： | 孙剑 方旭东 |
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| 作者单位： | 1. 黄山学院信息工程学院,安徽黄山,245041
2. 黄山太平索道有限公司,安徽黄山,245700 |
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| 基金项目： | 安徽省教育厅自然科学研究项目(KJ2009B137); 黄山学院自然科学研究项目(2007xkj005);黄山学院教研项目(2009JXYJ001) |
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| 摘 要： | 针对铁磁性金属构件,阐述了基于应力测试的漏磁场检测原理,设计了基于HMC1021Z磁阻传感器的漏磁场检测电路,给出了各部分电路分析与设计要点,该电路具有高输入阻抗、地输出阻抗、低噪声等特点。实验测试表明,检测电路能够对铁磁性金属构件的漏磁场进行有效检测,为后续的信号特征提取与处理奠定了基础。
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| 关 键 词： | 金属磁记忆 漏磁场 磁阻传感器 检测电路 |
Research on Detection Circuit for Magnetic Flux Leakage Signals Based on Megnetoresistive Sensor |
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| Sun Jian,Fang Xuedong.Research on Detection Circuit for Magnetic Flux Leakage Signals Based on Megnetoresistive Sensor[J].Journal of Huangshan University,2011,13(5):20-23. |
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| Authors: | Sun Jian Fang Xuedong |
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| Institution: | Sun Jian1,Fang Xuedong2 (1.School of Information Engineering,Huangshan University,Huangshan245021,China,2.Huangshan Taiping Cable Car Co.Ltd.,Huangshan 245700,China) |
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| Abstract: | The principle of magnetic flux leakage detection for ferromagnetic metal components based on stress testing is explained.Based on HMC1021Z sensor,a detection circuit for magnetic flux leakage featuring high input impedance,low output impedance and low noise is designed and the main points in circuit analysis and design are offered.The experiment shows the detection circuit can effectively detect magnetic flux leakage in ferromagnetic metal components,which has laid a foundation for signal feature extraction... |
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| Keywords: | metal magnetic memory magnetic leakage field megnetoresistive sensor detection circuit |
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