New stray-immune interface circuit for capacitive sensors

被引：0
|
作者：
Cao, Xinping [1 ]
Zhang, Dacheng [1 ]
Huang, Ru [1 ]
Zhang, Xing [1 ]
Wang, Yangyuan [1 ]
机构：
[1] Inst. of Microelectron., Peking Univ., Beijing 100871, China
来源：
| 2002年 / Science Press卷 / 23期
关键词：
Capacitance - Charge transfer devices - Design - Instrument circuits;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A novel interface circuit is presented to detect the minimal change of the differential capacitance. Based on the charge transfer circuit, the interface circuit introduces another charge transfer circuit detecting the reference differential capacitance. By differentially amplifying the output of the detecting and reference circuit, the interface circuit shows better stability and much higher sensitivity. At the same time, it keeps the characteristic of high immunity to parasitic capacitance.
引用
收藏
相关论文
共 50 条
  • [21] A HIGH-FREQUENCY STRAY-IMMUNE CAPACITANCE TRANSDUCER BASED ON THE CHARGE-TRANSFER PRINCIPLE
    HUANG, SM
    GREEN, RG
    PLASKOWSKI, A
    BECK, MS
    IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 1988, 37 (03) : 368 - 373
  • [22] A circuit for the temperature compensation of capacitive sensors
    Grigorie, M
    Iseli, CD
    Krummenacher, F
    Enz, C
    ISCAS 96: 1996 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS - CIRCUITS AND SYSTEMS CONNECTING THE WORLD, VOL 1, 1996, : 381 - 384
  • [23] A Delta-Sigma Interface Circuit for Capacitive Sensors With an Automatically Calibrated Zero Point
    Shin, Dong-Yong
    Lee, Hyunjoong
    Kim, Suhwan
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2011, 58 (02) : 90 - 94
  • [24] Differential Wide Temperature Range CMOS Interface Circuit for Capacitive MEMS Pressure Sensors
    Wang, Yucai
    Chodavarapu, Vamsy P.
    SENSORS, 2015, 15 (02): : 4253 - 4263
  • [25] A novel interface circuit for grounded capacitive sensors with feedforward-based active shielding
    Reverter, Ferran
    Li, Xiujun
    Meijer, Gerard C. M.
    MEASUREMENT SCIENCE AND TECHNOLOGY, 2008, 19 (02)
  • [26] Universal Capacitive Sensors and Transducers Interface
    Yurish, Sergey Y.
    PROCEEDINGS OF THE EUROSENSORS XXIII CONFERENCE, 2009, 1 (01): : 441 - 444
  • [27] An integrated interface for grounded capacitive sensors
    Jia, Q
    Meijer, GCM
    Li, XJ
    Guan, C
    2005 IEEE SENSORS, VOLS 1 AND 2, 2005, : 1076 - 1079
  • [28] Simplifying Capacitive Sensor Readout Using a New Direct Interface Circuit
    Hidalgo-Lopez, Jose A.
    Castellanos-Ramos, Julian
    IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2023, 72
  • [29] Simplifying Capacitive Sensor Readout Using a New Direct Interface Circuit
    Hidalgo-Lopez, Jose A.
    Castellanos-Ramos, Julian
    IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2023, 72
  • [30] Simplifying Capacitive Sensor Readout Using a New Direct Interface Circuit
    Hidalgo-Lopez, Jose A.
    Castellanos-Ramos, Julian
    IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2023, 72
12345