Design of Frequency Measurement System for Variable Pole-distance Capacitive Sensor

被引：0
|
作者：
Ren, Zhongru [1 ]
Zhang, Xia [1 ]
机构：
[1] Commun Univ China, Sch Data Sci & Intelligent Media, Beijing, Peoples R China
来源：
PROCEEDINGS OF 2020 IEEE INTERNATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE AND INFORMATION SYSTEMS (ICAIIS) | 2020年
关键词：
Capacitive sensor; Pspice; Small-signal Readout; FPGA;
D O I：
10.1109/icaiis49377.2020.9194897
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
This paper studies the variable pole-distance capacitive sensor. Firstly, the structural characteristics and working principle of the sensor's sensitive components are analyzed, and a block diagram of the frequency measurement system is given. Then, according to the parameters of common micro capacitance sensor, a small signal readout circuit is designed, and its feasibility is verified by the simulation software Pspice. Finally, a frequency measurement circuit is designed to output the resonant frequency of the sensor.
引用
收藏
页码：355 / 359
页数：5
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