ES2183799T3 - Sensor electrico para la medicion de modificaciones de capacitancia y su conversion en una señal de tension. - Google Patents

Sensor electrico para la medicion de modificaciones de capacitancia y su conversion en una señal de tension.

Info

Publication number
ES2183799T3
ES2183799T3 ES00952915T ES00952915T ES2183799T3 ES 2183799 T3 ES2183799 T3 ES 2183799T3 ES 00952915 T ES00952915 T ES 00952915T ES 00952915 T ES00952915 T ES 00952915T ES 2183799 T3 ES2183799 T3 ES 2183799T3
Authority
ES
Spain
Prior art keywords
voltage signal
conversion
electrical sensor
measurement
capacitance change
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
ES00952915T
Other languages
English (en)
Inventor
Maximilian Indihar
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of ES2183799T3 publication Critical patent/ES2183799T3/es
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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
    • G01D5/241—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
    • G01D5/2417—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying separation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Remote Sensing (AREA)
  • Power Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

Sensor eléctrico para la medición de una modificación de capacitancia de un condensador (7) y conversión en una señal (Udiff) de tensión correspondiente a la modificación de capacitancia, que se transmite y valora en un dispositivo (15) de indicación o medición, usándose un transformador (1) con dos bobinas (La, Lb) de devanado bifilar sobre un núcleo (2), estando conectado a la entrada de la bobina primaria (La) un emisor (14) de señales, especialmente para el aviso de una modificación de la distancia de un objeto (12, 19) a detectar o vigilar o para el aviso del movimiento de dos objetos (12, 19) con movimiento relativo entre sí, caracterizado por las siguientes propiedades: a) en las salidas (4, 6) de las bobinas primaria (La) y secundaria (Lb) se conectan sendos electrodos (Ea, Eb) de condensador del condensador (7), que forman entre sí un campo (9) eléctrico y a los que se opone un electrodo (8, Ec) común de referencia, que además forma a su vez un campo (10, 11) eléctrico de dispersión con cada electrodo (Ea, Eb) del condensador, de modo que cada electrodo (Ea, Eb) del condensador forma con el electrodo (8, Ec) de referencia un condensador (Ca, Cb) de campo de dispersión, b) la entrada (5) de la bobina (Lb) secundaria está conectada con un potencial (8) de referencia fijo del sistema, c) en el núcleo (2) del transformador (1) hay colocada una bobina (Lc) terciaria, o la que está conectado el dispositivo (15) de indicación o medición, d) un objeto (12, 19) que se aproxima o se aleja de los electrodos (Ea, Eb) del condensador y del electrodo (8, Ec) de referencia provoca una modificación de la capacitancia de los condensadores (Ca, Cb) de campo de dispersión con respecto al electrodo (Ec, 8) de referencia, generando esta modificación de la capacitancia una tensión (Udiff) diferencial en la bobina terciaria (Lc), que es evaluada en el dispositivo (15) de indicación o medición.
ES00952915T 1999-07-13 2000-07-10 Sensor electrico para la medicion de modificaciones de capacitancia y su conversion en una señal de tension. Expired - Lifetime ES2183799T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19932162 1999-07-13

Publications (1)

Publication Number Publication Date
ES2183799T3 true ES2183799T3 (es) 2003-04-01

Family

ID=7914280

Family Applications (1)

Application Number Title Priority Date Filing Date
ES00952915T Expired - Lifetime ES2183799T3 (es) 1999-07-13 2000-07-10 Sensor electrico para la medicion de modificaciones de capacitancia y su conversion en una señal de tension.

Country Status (8)

Country Link
US (1) US6650126B1 (es)
EP (1) EP1194740B1 (es)
AT (1) ATE226315T1 (es)
AU (1) AU766527B2 (es)
DE (3) DE20011966U1 (es)
ES (1) ES2183799T3 (es)
NZ (1) NZ516812A (es)
WO (1) WO2001004578A1 (es)

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KR20020019951A (ko) * 2000-05-19 2002-03-13 이시오까 쇼오고 회로 기판의 도통 검사 장치, 도통 검사 방법, 도통검사용 지그 및 기록 매체
DE10100972A1 (de) * 2001-01-11 2002-03-07 Winkler Hans Georg Einrichtung zur Sicherung eines Objektes gegen unbefugten Zugriff
DE10157770C1 (de) * 2001-11-27 2002-11-07 Mustafa Uzman Metallsuchgerät
US6947853B2 (en) * 2002-05-23 2005-09-20 Oht, Inc. Apparatus and method for inspecting electrical continuity of circuit board, jig for use therein, and recording medium thereon
US7030768B2 (en) * 2003-09-30 2006-04-18 Wanie Andrew J Water softener monitoring device
DE102004007369A1 (de) * 2004-02-16 2005-09-08 Pepperl + Fuchs Gmbh Schaltungsanordnung sowie Verfahren zur Detektion eines Masseschlusses
US7034552B2 (en) * 2004-02-17 2006-04-25 Markus Kirchner Operator sensing circuit for disabling motor of power equipment
US7116091B2 (en) 2004-03-04 2006-10-03 Zircon Corporation Ratiometric stud sensing
US7148703B2 (en) * 2004-05-14 2006-12-12 Zircon Corporation Auto-deep scan for capacitive sensing
US7710205B2 (en) * 2005-11-28 2010-05-04 Seagate Technology Llc Capacitor detection by phase shift
US7397372B2 (en) * 2005-12-22 2008-07-08 Motorola, Inc. Method and apparatus for marketing retail goods
FR2932281B1 (fr) * 2008-06-06 2010-12-10 Faurecia Bloc Avant Dispositif de detection de proximite pour vehicule automobile
US8686746B2 (en) * 2009-07-01 2014-04-01 Delta Electronics, Inc. Test apparatus and method for measuring common-mode capacitance
DE102012109031A1 (de) * 2012-09-25 2014-03-27 Huf Hülsbeck & Fürst Gmbh & Co. Kg Elektronische Sensoreinheit zur Erfassung der berührungslosen Betätigung einer Tür oder Klappe an einem Kraftfahrzeug
EP3475737A1 (en) 2016-06-24 2019-05-01 Stanley Black & Decker, Inc. Systems and methods for locating a stud
DE102021101455A1 (de) 2021-01-25 2022-07-28 Valeo Schalter Und Sensoren Gmbh Kapazitive Sensorvorrichtung, Lenkrad mit einer kapazitiven Sensorvorrichtung, Verfahren zum Betrieb einer kapazitiven Sensorvorrichtung und/oder eines Lenkrads sowie Fahrzeug mit einer kapazitiven Sensorvorrichtung
CN116989652B (zh) * 2023-09-25 2023-12-08 科瑞工业自动化系统（苏州）有限公司 可作为参比电极使用的位移传感器及其使用方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990005A (en) * 1974-09-03 1976-11-02 Ade Corporation Capacitive thickness gauging for ungrounded elements
DE3408261A1 (de) 1984-03-07 1985-09-19 Hansa Metallwerke Ag, 7000 Stuttgart Annaeherungsschalter sowie steuerschaltungsanordnung hierfuer
EP0158593B1 (de) * 1984-04-09 1989-05-24 GET Gesellschaft für Elektronik-Technologie mbH Elektronische Warn- und Überwachungseinrichtung für Handhabungsvorrichtungen
US4893071A (en) 1988-05-24 1990-01-09 American Telephone And Telegraph Company, At&T Bell Laboratories Capacitive incremental position measurement and motion control
DE4006119A1 (de) * 1990-02-27 1991-08-29 Ines Gmbh Kapazitives wegaufnehmersystem
US5394292A (en) * 1991-04-30 1995-02-28 Tsuden Kabushiki Kaisha Electronic car bumper
US5337353A (en) 1992-04-01 1994-08-09 At&T Bell Laboratories Capacitive proximity sensors
DE4433677B4 (de) 1993-09-21 2005-05-04 Sie Sensorik Industrie-Elektronik Gmbh Verfahren zur Überwachung eines sich bewegenden Mediums unter Verwendung eines elektrischen Sensors und Vorrichtung hierzu

Also Published As

Publication number Publication date
EP1194740B1 (de) 2002-10-16
DE10081978D2 (de) 2002-06-20
DE20011966U1 (de) 2000-10-26
ATE226315T1 (de) 2002-11-15
AU6556600A (en) 2001-01-30
DE50000663D1 (de) 2002-11-21
EP1194740A1 (de) 2002-04-10
WO2001004578A1 (de) 2001-01-18
US6650126B1 (en) 2003-11-18
NZ516812A (en) 2002-07-26
AU766527B2 (en) 2003-10-16

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