DE69515459D1 - Kapazitiver Sensor - Google Patents

Kapazitiver Sensor

Info

Publication number
DE69515459D1
DE69515459D1 DE69515459T DE69515459T DE69515459D1 DE 69515459 D1 DE69515459 D1 DE 69515459D1 DE 69515459 T DE69515459 T DE 69515459T DE 69515459 T DE69515459 T DE 69515459T DE 69515459 D1 DE69515459 D1 DE 69515459D1
Authority
DE
Germany
Prior art keywords
capacitance sensing
sensing means
charging
unity gain
gain buffer
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 - Lifetime
Application number
DE69515459T
Other languages
English (en)
Other versions
DE69515459T2 (de
Inventor
Gaute Munch
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.)
CARLO GAVAZZI SERVICES AG STEI
Original Assignee
CARLO GAVAZZI SERVICES AG STEI
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 CARLO GAVAZZI SERVICES AG STEI filed Critical CARLO GAVAZZI SERVICES AG STEI
Application granted granted Critical
Publication of DE69515459D1 publication Critical patent/DE69515459D1/de
Publication of DE69515459T2 publication Critical patent/DE69515459T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/088—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices operating with electric fields
    • 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
    • H03K2217/960755—Constructional details of capacitive touch and proximity switches
    • H03K2217/960765—Details of shielding arrangements

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Electronic Switches (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
DE69515459T 1995-01-18 1995-01-18 Kapazitiver Sensor Expired - Lifetime DE69515459T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95100627A EP0723166B1 (de) 1995-01-18 1995-01-18 Kapazitiver Sensor

Publications (2)

Publication Number Publication Date
DE69515459D1 true DE69515459D1 (de) 2000-04-13
DE69515459T2 DE69515459T2 (de) 2000-11-02

Family

ID=8218914

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69515459T Expired - Lifetime DE69515459T2 (de) 1995-01-18 1995-01-18 Kapazitiver Sensor

Country Status (4)

Country Link
EP (1) EP0723166B1 (de)
AT (1) ATE190405T1 (de)
CA (1) CA2165631A1 (de)
DE (1) DE69515459T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5793206A (en) 1995-08-25 1998-08-11 Jentek Sensors, Inc. Meandering winding test circuit
GB9602946D0 (en) * 1996-02-13 1996-04-10 Sensatech Ltd Profile detector
US6781387B2 (en) 1997-01-06 2004-08-24 Jentek Sensors, Inc. Inspection method using penetrant and dielectrometer
CA2275550C (en) * 1997-01-06 2006-05-09 Jentek Sensors, Inc. Magnetometer and dielectrometer detection of subsurface objects
US6486673B1 (en) 1997-01-06 2002-11-26 Jentek Sensors, Inc. Segmented field dielectrometer
SE511349C2 (sv) 1997-03-06 1999-09-13 Jan Rudeke Kapacitiv sensor för närvaroindikering
CA2308166C (en) 1997-10-29 2007-09-04 Jentek Sensors, Inc. Absolute property measurement with air calibration
US6233012B1 (en) * 1997-11-05 2001-05-15 Stmicroelectronics, Inc. Parasitic capacitance reduction for passive charge read-out
US6377039B1 (en) 1997-11-14 2002-04-23 Jentek Sensors, Incorporated Method for characterizing coating and substrates
CA2331644A1 (en) 1998-05-12 1999-11-18 Neil J. Goldfine Methods for utilizing dielectrometry signals using estimation grids
DE19945330C2 (de) * 1999-09-22 2002-10-31 Sie Sensorik Ind Elektronik Gm Verfahren zur Detektion und Auswertung kleiner Kapazitätsänderungen zur Umsetzung in ein Schaltsignal und kapazitiver Sensor hierzu
DE10065865A1 (de) * 2000-12-02 2002-06-20 Spanner Pollux Gmbh Vorrichtung zum Erzeugen eines Schaltsignals
DE10064510A1 (de) * 2000-12-22 2002-07-04 Valeo Schalter & Sensoren Gmbh Schalteinrichtung
JP3693665B2 (ja) 2003-08-06 2005-09-07 東京エレクトロン株式会社 容量検出回路及び容量検出方法
CN101192822B (zh) * 2006-11-20 2010-12-08 鸿富锦精密工业（深圳）有限公司 感应控制装置
DE102006062404A1 (de) * 2006-12-21 2008-07-03 Prettl, Rolf Vorrichtung und Verfahren zur Positionsbestimmung bezogen auf eine Oberfläche
BRPI0822848A2 (pt) * 2008-10-17 2015-06-30 Faurecia Bloc Avant "dispositivo sensor, peça de guarnição externa e veículo automotor"
EP2228628B1 (de) * 2009-03-10 2011-09-28 EM Microelectronic-Marin SA Elektronischer Schaltkreis mit kapazitivem Sensor zur Messung eines physikalischen Parameters und Verfahren zur Ingangsetzung des elektronischen Schaltkreises
CN102193695A (zh) * 2010-03-05 2011-09-21 启迪科技股份有限公司 触控面板测试设备及其检测装置
FR2966280B1 (fr) * 2010-10-13 2013-04-05 Continental Automotive France Electrode notamment pour la constitution d'un capteur de detection de proximite
DE102013204717B3 (de) * 2013-03-18 2014-09-04 Luer Luetkens Kapazitiver Näherungssensor
DE102013106704A1 (de) * 2013-06-26 2014-12-31 Hartmut Fuchs Vorrichtung zur berührungslosen Detektion und/oder Abstandsermittlung mindestens eines Objektes relativ zu einem Messkörper sowie Verfahren dazu

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2271538A1 (en) * 1973-12-27 1975-12-12 Cii Capacitive proximity detector or switch - detects effective capacitance of object and activates logic circuit
GB1515431A (en) * 1976-02-13 1978-06-21 Gte International Inc High voltage protection circuit
DE3125925A1 (de) * 1981-07-01 1983-03-10 Hans-Michael 7730 Villingen-Schwenningen Kohler "kapazitiver annaeherungsschalter"
GB8911274D0 (en) * 1989-05-17 1989-07-05 Moonstone Computers Ltd Proximity sensor

Also Published As

Publication number Publication date
DE69515459T2 (de) 2000-11-02
EP0723166A1 (de) 1996-07-24
ATE190405T1 (de) 2000-03-15
CA2165631A1 (en) 1996-07-19
EP0723166B1 (de) 2000-03-08

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Legal Events

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