| 一种新的基于c／v的微电容的检测方法 |
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| 引用本文： | 许立志,王明灼,曾黄麟.一种新的基于c／v的微电容的检测方法[J].数字技术与应用,2009(10):19-21. |
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| 作者姓名： | 许立志 王明灼 曾黄麟 |
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| 作者单位： | 四川理工学院,四川自贡643000 |
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| 基金项目： | 本文研究工作得到国家高技术研究发展计划（863计划）第四批课题,（2008AA11A134）基金的部分资助 |
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| 摘 要： | 论文分析了传统及现有小电容检测方法存在的问题，基于C／V电容检测的基本原理，提出了一种新的基于C／V的微电容的检测方法，设计了一个简易的微电容运算放大器检测电路。根据电路模型分析和仿真测试结果表明，该电路具有抗杂敦电容干扰强、灵敏度高、容易实现无损在线检测、成本低等优点。
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| 关 键 词： | 微电容 线性 检测电路 杂散电容 |
A New Approach of Micro-capacitor Measurment Based on Conver- sion of Capacitances and Voltages |
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| Lizhi Xu Mingzhuo Wang Huanglin Zeng.A New Approach of Micro-capacitor Measurment Based on Conver- sion of Capacitances and Voltages[J].Digital Technology & Application,2009(10):19-21. |
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| Authors: | Lizhi Xu Mingzhuo Wang Huanglin Zeng |
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| Affiliation: | Lizhi Xu Mingzhuo Wang Huanglin Zeng ( Sichuan University of Science and Engineering, 643000, P. R. China ) |
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| Abstract: | in this Paper, some of techniques for measuring of small capacitance are briefly discussed. A kind of simple operational amplifier circuit is designed on the basic principle of Conversion of Capacitances and Voltages （C / V） to detect the micro-capacitor. Based on analysis on capacitance detection of the circuit model and simulation test results given, It is shown that a circuit of micro-capacitor measurment based on C / V is of high sensitivity and low cost and easy for realization. |
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| Keywords: | micro-capacitance Linear detecting circuit Stray capacitance |
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