Front-End Interfacing Circuit for Capacitive Sensor

被引：0
|
作者：
Ota, Akira [1 ]
Petchmaneelumka, Wandee [1 ]
Cheypoca, Thepjit [1 ]
Rerkratn, Apinai [1 ]
Riewruja, Vanchai [1 ]
机构：
[1] KMITL, Fac Engn, Dept Instrumentat & Control Engn, Bangkok, Thailand
来源：
2015 7TH INTERNATIONAL CONFERENCE ON INFORMATION TECHNOLOGY AND ELECTRICAL ENGINEERING (ICITEE) | 2015年
关键词：
capacitive sensor; interfacing circuit; capacitance-to-voltage converter; sample-and-hold circuit; VOLTAGE CONVERTER;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
This paper presents an interfacing circuit for capacitive sensor using charge amplifier formed a capacitance-to-voltage converter. The proposed circuit is suitable for the front-end analog-to-digital converter (ADC) and wide variable range of sensing capacitance. The achieved output voltage provides a linear transfer characteristic and fast response. The circuit configuration is implemented using only commercially available devices. The performances of proposed circuit are confirmed by experimental results.
引用
收藏
页码：313 / 316
页数：4
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