| 电容式传感器寄生电容的抑制 |
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| 引用本文： | 刘秉安.电容式传感器寄生电容的抑制[J].国外电子测量技术,2011,30(3):46-49. |
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| 作者姓名： | 刘秉安 |
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| 作者单位： | 陕西工业职业技术学院电气工程学院,咸阳,712000 |
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| 摘 要： | 为了抑制电子线路的杂散电容以及传感器内极板与其周围导体构成的所谓"寄生电容",提高传感器的灵敏度,克服这些电容(如电缆电容)随机变化,改善仪器工作稳定性,保证测量精度,通过对电缆的选择、安装及接法的改善,提出了一种新的电荷传送抑制消除测量电路,该电路可有效抑制或消除"寄生电容",实验结果比较满意.从而可以得出结论:选择...
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| 关 键 词： | 电容传感器 寄生电容 驱动电缆技术 整体屏蔽技术 电荷传送抑制及消除法 |
Research on the suppression of parasitic capacitance in capacitive sensor |
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| Liu Bing'an.Research on the suppression of parasitic capacitance in capacitive sensor[J].Foreign Electronic Measurement Technology,2011,30(3):46-49. |
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| Authors: | Liu Bing'an |
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| Affiliation: | Liu Bing’an(College of Electrical Engineering,Shaanxi Polytechnic Institute,Xianyang 71200,China) |
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| Abstract: | To increase the stability of the sensor,overcome the capacitors random variation,and to improve the stability of instruments,it is necessary to suppress the stray capacitance and the parasitic capacitance.A new charge transfer suppression and elimination circuit is introduced,which can effectively suppress the capacitance in the experiment.Draw conclusion that the parasitic ciapcitance can be suppress or eliminate when appropriate circuit is used. |
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| Keywords: | capacitance sensor parasitic capacitance driving cable technology overall shielding charge transfer suppression elimination method |
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