FR2721104B1 - Capteur du type à capacité électrostatique. - Google Patents

Capteur du type à capacité électrostatique.

Info

Publication number
FR2721104B1
FR2721104B1 FR9506715A FR9506715A FR2721104B1 FR 2721104 B1 FR2721104 B1 FR 2721104B1 FR 9506715 A FR9506715 A FR 9506715A FR 9506715 A FR9506715 A FR 9506715A FR 2721104 B1 FR2721104 B1 FR 2721104B1
Authority
FR
France
Prior art keywords
type sensor
electrostatic capacity
capacity type
electrostatic
sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR9506715A
Other languages
English (en)
Other versions
FR2721104A1 (fr
Inventor
Kazunori Kawashima
Hajime Oda
Takahiro Miyajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seikosha KK
Original Assignee
Seikosha KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seikosha KK filed Critical Seikosha KK
Publication of FR2721104A1 publication Critical patent/FR2721104A1/fr
Application granted granted Critical
Publication of FR2721104B1 publication Critical patent/FR2721104B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/955—Proximity switches using a capacitive detector
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/96—Touch switches
    • H03K2217/9607—Capacitive touch switches
    • H03K2217/960735—Capacitive touch switches characterised by circuit details
    • H03K2217/960745—Capacitive differential; e.g. comparison with reference capacitance
FR9506715A 1994-06-08 1995-06-07 Capteur du type à capacité électrostatique. Expired - Fee Related FR2721104B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12618994A JP2784396B2 (ja) 1994-06-08 1994-06-08 静電容量形センサ

Publications (2)

Publication Number Publication Date
FR2721104A1 FR2721104A1 (fr) 1995-12-15
FR2721104B1 true FR2721104B1 (fr) 1997-10-24

Family

ID=14928904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9506715A Expired - Fee Related FR2721104B1 (fr) 1994-06-08 1995-06-07 Capteur du type à capacité électrostatique.

Country Status (5)

Country Link
US (1) US5554973A (fr)
JP (1) JP2784396B2 (fr)
DE (1) DE19520948C2 (fr)
FR (1) FR2721104B1 (fr)
GB (1) GB2290148B (fr)

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US6161070A (en) * 1996-02-23 2000-12-12 Nec Home Electronics, Inc. Passenger detection system
US6307182B1 (en) * 1997-04-25 2001-10-23 Toastmaster, Inc. Electric appliance having a proximity sensor
DE19817640A1 (de) * 1998-04-21 1999-11-04 Gerhard Von Der Emde Unterwasserdetektor für kapazitive Objekteigenschaften
JP3549441B2 (ja) * 1998-06-22 2004-08-04 シャープ株式会社 定電流制御装置
US6825765B2 (en) * 1998-12-30 2004-11-30 Automotive Systems Laboratory, Inc. Occupant detection system
EP1154621B1 (fr) * 2000-05-11 2008-01-23 Lucent Technologies Inc. Terminal mobile pour système de télécommunication
JP2001340318A (ja) * 2000-05-31 2001-12-11 Secom Co Ltd 静電容量型計測装置及び呼吸計測装置
KR100366503B1 (ko) * 2000-06-13 2003-01-09 주식회사 엘지이아이 글래스 터치 감지회로
EP1458588B1 (fr) * 2001-12-13 2008-07-02 Intelligent Mechatronic Systems, Inc. Dispositif de detection de la presence d'un occupant
FR2844349B1 (fr) * 2002-09-06 2005-06-24 Nanotec Solution Detecteur de proximite par capteur capacitif
CN1287522C (zh) * 2002-12-20 2006-11-29 阿尔卑斯电气株式会社 具有静电传感器的输入装置
FR2853058B1 (fr) * 2003-03-27 2005-05-13 Valeo Securite Habitacle Detection de presence par capteur capacitif
DE602005008070D1 (de) * 2005-08-31 2008-08-21 Electrolux Home Prod Corp Durch Berührung steuerbare kapazitive Schalteinrichtung
US7411401B1 (en) 2005-09-02 2008-08-12 The United States Of America As Represented By The Secretary Of The Army Systems and methods for reducing common-mode platform noise in electric-field sensors
US7589538B2 (en) * 2005-12-21 2009-09-15 Weiss Instruments, Inc. Micropower voltage-independent capacitance measuring method and circuit
US7782220B2 (en) * 2006-05-26 2010-08-24 Fujikura Ltd. Proximity sensor and proximity sensing method
US7656169B2 (en) * 2007-02-06 2010-02-02 Iee International Electronics & Engineering S.A. Capacitive occupant detection system
JP5064848B2 (ja) * 2007-03-14 2012-10-31 アルプス電気株式会社 静電容量スイッチ
KR100982282B1 (ko) * 2008-09-19 2010-09-15 주식회사 애트랩 센서, 센서의 센싱 방법, 및 센서의 필터
JP5549145B2 (ja) * 2009-08-04 2014-07-16 日本テキサス・インスツルメンツ株式会社 静電容量検出装置
JP5471587B2 (ja) * 2010-02-25 2014-04-16 トヨタ紡織株式会社 乗員検知システム及び乗員検知システムの制御方法
JP5984827B2 (ja) * 2011-10-18 2016-09-06 シチズンホールディングス株式会社 静電容量センサ
NZ715344A (en) * 2013-05-20 2020-02-28 St Reproductive Tech Llc Sensor apparatus and associated systems and methods
KR101500400B1 (ko) 2013-12-10 2015-03-09 현대자동차 주식회사 정전 용량 검출 장치
TWI544743B (zh) 2014-12-10 2016-08-01 原相科技股份有限公司 高精度之電容式開關
CN105790748B (zh) * 2014-12-19 2018-10-19 原相科技股份有限公司 高精度的电容式开关
DE102017205908B4 (de) * 2017-04-06 2019-04-04 Marius Czardybon Auswerteschaltung, System und Verfahren zum Auswerten eines kapazitiven oder induktiven Sensors
CN109884711B (zh) * 2018-11-23 2022-09-13 辽宁大学 一种基于感应原理的非接触式煤、岩带电监测传感器
US11463088B2 (en) * 2019-09-18 2022-10-04 Semtech Corporation Proximity sensor with nonlinear filter and method
DE102022105486A1 (de) 2022-03-09 2023-09-14 Zf Automotive Germany Gmbh Handerkennungsvorrichtung für eine lenkradeinrichtung sowie lenkradanordnung mit der handerkennungsvorrichtung

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Publication number Priority date Publication date Assignee Title
DE2148775B2 (de) * 1971-09-30 1979-03-08 Siemens Ag, 1000 Berlin Und 8000 Muenchen Messeinrichtung mit kapazitivem abgriff
US4001613A (en) * 1974-09-20 1977-01-04 Rca Corporation Proximity sensing circuit
US4055129A (en) * 1975-07-16 1977-10-25 The Singer Company Digital differential capacitance proximity switch
US4157539A (en) * 1976-10-14 1979-06-05 The Singer Company Charge rate, capacitive switch system
JPS5255656A (en) * 1976-11-15 1977-05-07 Kiyapakon Insutsurumentsu Kk Capacitive displacement gauge
JPS55112512A (en) * 1979-02-21 1980-08-30 Kiyapakon Instr Kk Capacitive displacement gauge
JPS57149911A (en) * 1981-03-13 1982-09-16 Ryochi Kato Electrostatic capacity type sensor
GB2119931B (en) * 1982-05-07 1986-04-30 Graham Michael Stephens Proximity detection devices
JPS59112225A (ja) * 1982-12-29 1984-06-28 Ryochi Kato 静電容量形センサ
JPS604801A (ja) * 1983-06-23 1985-01-11 Ryochi Kato 静電容量形変位検出器
DE3625616A1 (de) * 1986-07-29 1988-02-11 Agfa Gevaert Ag Farbfotografisches aufzeichnungsmaterial mit 2-aequivalentpurpurkupplern
JPS6336246U (fr) * 1986-08-27 1988-03-08
US4825765A (en) * 1986-09-25 1989-05-02 Nippon Oil And Fats Co., Ltd. Delay circuit for electric blasting, detonating primer having delay circuit and system for electrically blasting detonating primers
JPH0728181B2 (ja) * 1988-12-28 1995-03-29 パイオニア株式会社 パルス幅変調増幅回路
US5148149A (en) * 1991-01-31 1992-09-15 Allied Security Devices, Inc. Differential delay intrusion detection sensory system
JPH0646120A (ja) * 1992-04-21 1994-02-18 Nec Corp 複合電話機

Also Published As

Publication number Publication date
DE19520948A1 (de) 1995-12-14
JP2784396B2 (ja) 1998-08-06
GB2290148A (en) 1995-12-13
GB9511576D0 (en) 1995-08-02
GB2290148B (en) 1998-03-04
JPH07332917A (ja) 1995-12-22
DE19520948C2 (de) 2003-10-09
US5554973A (en) 1996-09-10
FR2721104A1 (fr) 1995-12-15

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Legal Events

Date Code Title Description
TP Transmission of property
D6 Patent endorsed licences of rights
ST Notification of lapse

Effective date: 20070228