| 电容传感器测量电路的稳零研究 |
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| 引用本文： | 杨三序,徐树山,殷保中.电容传感器测量电路的稳零研究[J].传感器与微系统,2006,25(7):55-57,60. |
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| 作者姓名： | 杨三序 徐树山 殷保中 |
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| 作者单位： | 1. 商丘师范学院,物理系,河南,商丘,476000
2. 河南中原高速公路股份有限公司,河南,许昌,461000 |
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| 摘 要： | 受到测量电路中元件本身性能、温度和供电电源性能等的影响,采用四相检测测量电路的微电容传感器的输出不可避免地会出现零漂,影响传感器的稳定性.为此,对微电容传感器测量电路的零漂现象进行了研究,给出了稳零方案和电路,并说明了电路中各元件对稳零的影响以及元件的选择和计算方法.
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| 关 键 词： | 微电容传感器 测量电路 零漂 稳零 |
| 文章编号： | 1000-9787（2006）07-0055-03 |
| 收稿时间： | 2006-01-20 |
| 修稿时间： | 2006-01-20 |
Research on stability of zero-point of capacitance transducer measuring circuit |
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| YANG San-xu,XU Shu-shan,YIN Bao-zhong.Research on stability of zero-point of capacitance transducer measuring circuit[J].Transducer and Microsystem Technology,2006,25(7):55-57,60. |
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| Authors: | YANG San-xu XU Shu-shan YIN Bao-zhong |
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| Affiliation: | 1. Department of Physics, Shangqiu Normal College, Shangqiu 476000, China; 2. Henan Zhongyuan Expressway Co. ,Ltd,Xuchang 461000,China |
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| Abstract: | The output of the microcapacitance transducer with a four-phase measuring circuit inevitably presents zero drift, so that the stability of the transducer is effected. Investigation of zero drift phenomena of the microcapacitance transducer circuit is studied. A design of stability of zero-point and circuit is given. The effect of the devices in the circuit on stability of zero-point as well as methods of choosing devices is explained. |
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| Keywords: | microcapacitance transducer measuring circuit zero drift stability of zero-point |
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