CN101975893B - 一种基于仪器放大器的差动电容检测电路及检测方法 - Google Patents
一种基于仪器放大器的差动电容检测电路及检测方法 Download PDFInfo
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Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201245668A (en) * | 2011-05-05 | 2012-11-16 | Elan Microelectronics Corp | Circuit and method for sensing differential capacitance |
CN102226825B (zh) * | 2011-06-09 | 2013-02-06 | 第二炮兵装备研究院中试与检测中心 | 全数字差动电容检测装置 |
CN102393482B (zh) * | 2011-10-11 | 2013-08-28 | 深圳市京泉华科技股份有限公司 | 一种并网逆变器及其孤岛检测电路 |
CN102706383A (zh) * | 2012-06-04 | 2012-10-03 | 基康仪器(北京)有限公司 | 差动电容式仪器的测量装置和方法 |
CN102749525B (zh) * | 2012-06-05 | 2015-05-20 | 泰凌微电子(上海)有限公司 | 电容检测方法及电容检测电路 |
CN103035077A (zh) * | 2012-11-29 | 2013-04-10 | 深圳市新国都技术股份有限公司 | 一种pos机数据信息保护电路 |
CN103063949B (zh) * | 2012-12-18 | 2018-02-27 | 上海集成电路研发中心有限公司 | 一种电容失配检测电路及方法 |
CN104749438B (zh) * | 2015-04-17 | 2017-11-10 | 中国人民解放军后勤工程学院 | 一种差分式阻抗谱检测***及方法 |
JP6555208B2 (ja) * | 2016-07-29 | 2019-08-07 | 株式会社デンソー | リンギング抑制回路 |
CN107632206B (zh) * | 2017-09-22 | 2020-01-31 | 重庆纳尔利科技有限公司 | 一种手指触碰电容检测装置及其工作方法 |
WO2019144305A1 (zh) * | 2018-01-24 | 2019-08-01 | 深圳市汇顶科技股份有限公司 | 电容检测电路、触摸检测装置和终端设备 |
CN109342823B (zh) * | 2018-09-29 | 2020-12-01 | 北京长城华冠汽车科技股份有限公司 | Y电容的测量电路、控制方法及电动汽车 |
CN109633278B (zh) * | 2018-12-25 | 2021-05-14 | 伟宸科技(武汉)有限公司 | 一种电容装置 |
EP3957958B1 (en) | 2019-08-05 | 2023-05-10 | Shenzhen Goodix Technology Co., Ltd. | Detection circuit of bridge sensor, chip and detection system |
CN111404503A (zh) * | 2020-04-24 | 2020-07-10 | 中国地震局地壳应力研究所 | 一种差动电容交流电桥传感测控电路 |
CN111600590B (zh) * | 2020-07-21 | 2020-11-03 | 深圳市汇顶科技股份有限公司 | 电容检测电路和触控芯片 |
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US4193063A (en) * | 1978-05-15 | 1980-03-11 | Leeds & Northrup Company | Differential capacitance measuring circuit |
WO1988005166A1 (en) * | 1987-01-08 | 1988-07-14 | Massachusetts Institute Of Technology | Turbulent shear force microsensor |
CN1031428A (zh) * | 1988-10-06 | 1989-03-01 | 黄松明 | 差动电容测量电路及多量程测量仪 |
CN2784934Y (zh) * | 2005-04-19 | 2006-05-31 | 威海双丰电子集团有限公司 | 电容式加速度传感器信号变换电路 |
CN101149391A (zh) * | 2007-10-27 | 2008-03-26 | 中北大学 | 差分电容式传感器检测电路 |
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2010
- 2010-10-20 CN CN 201010512682 patent/CN101975893B/zh active Active
Patent Citations (5)
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US4193063A (en) * | 1978-05-15 | 1980-03-11 | Leeds & Northrup Company | Differential capacitance measuring circuit |
WO1988005166A1 (en) * | 1987-01-08 | 1988-07-14 | Massachusetts Institute Of Technology | Turbulent shear force microsensor |
CN1031428A (zh) * | 1988-10-06 | 1989-03-01 | 黄松明 | 差动电容测量电路及多量程测量仪 |
CN2784934Y (zh) * | 2005-04-19 | 2006-05-31 | 威海双丰电子集团有限公司 | 电容式加速度传感器信号变换电路 |
CN101149391A (zh) * | 2007-10-27 | 2008-03-26 | 中北大学 | 差分电容式传感器检测电路 |
Non-Patent Citations (2)
Title |
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周海涛等.用于数字闭环加速度计的差动电容检测电路.《电子测试》.2009,(第08期),60-64. |
用于数字闭环加速度计的差动电容检测电路;周海涛等;《电子测试》;20090815(第08期);60-65 * |
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Effective date of registration: 20201119 Address after: 226600 Shuanglou Industrial Park, Qutang Town, Hai'an City, Nantong City, Jiangsu Province Patentee after: Nantong Shengyang Electric Co.,Ltd. Address before: 226600 169 Li Fa FA Road, Chengdong Town, Haian City, Nantong, Jiangsu. Patentee before: Nantong Ji Zhi Intellectual Property Service Co.,Ltd. Effective date of registration: 20201119 Address after: 226600 169 Li Fa FA Road, Chengdong Town, Haian City, Nantong, Jiangsu. Patentee after: Nantong Ji Zhi Intellectual Property Service Co.,Ltd. Address before: 110870 School of information, Shenyang University of Technology, 111 Shen Xi Road, Shenyang economic and Technological Development Zone, Liaoning, China Patentee before: SHENYANG University OF TECHNOLOGY |
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Denomination of invention: A Differential Capacitance Detection Circuit and Detection Method Based on Instrument Amplifiers Effective date of registration: 20230607 Granted publication date: 20130320 Pledgee: Haian Xinyuan rural small loan Co.,Ltd. Pledgor: Nantong Shengyang Electric Co.,Ltd. Registration number: Y2023980043037 |