| 电容传感器新型电容测量电路设计 |
| |
| 引用本文： | 佘生能,孙士平.电容传感器新型电容测量电路设计[J].中国测试技术,2005,31(5):42-43. |
| |
| 作者姓名： | 佘生能 孙士平 |
| |
| 作者单位： | 长江大学测控技术教研室,湖北,荆州,434000 |
| |
| 摘 要： | 提出了一种基于V／T变换的用于电容传感器的电容测量电路。它将被测微小电容变化量转换成时间信号并由单片机进行处理，电路结构简单，电路中没有影响测量稳定性和产生零点漂移的元器件，大幅度地降低了测量过程中的噪声。
|
| 关 键 词： | 电容测量 V／T变换 恒流源 |
| 文章编号： | 1672-4984(2005)05-0042-02 |
| 收稿时间： | 2004-08-21 |
| 修稿时间： | 2004-11-16 |
Design of new capacitance measuring circuit for capacitance sensor |
| |
| SHE Sheng-neng,SUN Shi-ping.Design of new capacitance measuring circuit for capacitance sensor[J].China Measurement Technology,2005,31(5):42-43. |
| |
| Authors: | SHE Sheng-neng SUN Shi-ping |
| |
| Abstract: | A new capacitance measuring circuit based on V/T is developed for capacitance sensor, it can be used to transform the low capacitance change into time and processed by single-chip microcomputer, the circuits for measuring is simple , the noise are also reduced greatly because of no any amplifier and instable components influenced by drift. |
| |
| Keywords: | Capacitance measurement Voltage-time transfomer Constant current source |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
