FR2446485A1 - Dispositif a capteur de proximite et procede de mesure d'inductance - Google Patents

Dispositif a capteur de proximite et procede de mesure d'inductance

Info

Publication number
FR2446485A1
FR2446485A1 FR8000586A FR8000586A FR2446485A1 FR 2446485 A1 FR2446485 A1 FR 2446485A1 FR 8000586 A FR8000586 A FR 8000586A FR 8000586 A FR8000586 A FR 8000586A FR 2446485 A1 FR2446485 A1 FR 2446485A1
Authority
FR
France
Prior art keywords
sensor
inductance
voltage
inductor
target object
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.)
Granted
Application number
FR8000586A
Other languages
English (en)
Other versions
FR2446485B1 (fr
Inventor
William R Little
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.)
Eldec Corp
Original Assignee
Eldec Corp
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 Eldec Corp filed Critical Eldec Corp
Publication of FR2446485A1 publication Critical patent/FR2446485A1/fr
Application granted granted Critical
Publication of FR2446485B1 publication Critical patent/FR2446485B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2611—Measuring inductance
    • 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
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/9512—Proximity switches using a magnetic detector using digital techniques
    • 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
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/952—Proximity switches using a magnetic detector using inductive coils
    • H03K17/9537—Proximity switches using a magnetic detector using inductive coils in a resonant circuit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electronic Switches (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

Le dispositif permet une indication de la proximité d'un objet cible par rapport à un capteur 10 éloigné et comprend un inducteur Ls , RL , CL . Un appareil mesure l'inductance de l'inducteur du capteur, inductance qui correspond à l'inductance de l'objet cible. Le réseau de mesure d'inductance variable comprend un générateur d'impulsions 20 qui établit un courant traversant le capteur 10. Un étage à boucle de commande 30 détecte lorsque la tension aux bornes du capteur atteint un niveau prédéterminé et capture alors le courant du capteur pour bloquer la tension du capteur à ce niveau. Un étage de restauration 40 détermine alors le taux de variation du courant du capteur au moment où celui-ci est nul établissant ainsi une tension analogique calibrée de l'inductance de l'inducteur du capteur. Cette tension est appliquée à un étage de détection de proximité et de commutation 50 à la sortie S duquel on obtient une indication sur la proximité de l'objet cible.
FR8000586A 1979-01-12 1980-01-11 Dispositif a capteur de proximite et procede de mesure d'inductance Expired FR2446485B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/002,968 US4219740A (en) 1979-01-12 1979-01-12 Proximity sensing system and inductance measuring technique

Publications (2)

Publication Number Publication Date
FR2446485A1 true FR2446485A1 (fr) 1980-08-08
FR2446485B1 FR2446485B1 (fr) 1985-08-16

Family

ID=21703427

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8000586A Expired FR2446485B1 (fr) 1979-01-12 1980-01-11 Dispositif a capteur de proximite et procede de mesure d'inductance

Country Status (5)

Country Link
US (1) US4219740A (fr)
JP (2) JPS5596466A (fr)
CA (1) CA1155195A (fr)
FR (1) FR2446485B1 (fr)
GB (1) GB2040054B (fr)

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AT367865B (de) * 1980-11-28 1982-08-10 List Hans Einrichtung zur erzeugung eines impulses
US4646002A (en) * 1984-05-10 1987-02-24 Regents Of The University Of Minnesota Circuit for high impedance broad band probe
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ZA877294B (en) * 1986-09-29 1988-07-27 Univ Western Australia Inductive sensing
CH672383A5 (fr) * 1986-10-29 1989-11-15 Baumer Electric Ag
EP0277421A1 (fr) * 1986-12-05 1988-08-10 The University Of Western Australia Dispositif de capteurs de la capacitance
DE3807015A1 (de) * 1987-04-29 1988-11-10 Wabco Westinghouse Fahrzeug Verfahren und schaltung zur messung einer induktivitaet
US4827248A (en) * 1987-06-30 1989-05-02 The Boeing Company Proximity sensor with automatic gap control
JPH01241720A (ja) * 1988-03-24 1989-09-26 Terasaki Denki Sangyo Kk 開閉器の接触子装置
WO1990007126A1 (fr) * 1988-12-12 1990-06-28 Yale Materials Handling Corporation Procede et appareil permettant de mesurer l'inductance
US5148107A (en) * 1988-12-12 1992-09-15 Yale Materials Handling Corporation Inductive proximity switch means and method
US5051743A (en) * 1989-05-31 1991-09-24 Ball Corporation High precision, high frequency current sensing and analog signal decoding network
DE3920051A1 (de) * 1989-06-20 1991-01-03 Euchner & Co Oszillator, insbesondere fuer einen beruehrungslos arbeitenden induktiven naeherungssensor oder naeherungsschalter
US5498958A (en) * 1990-12-21 1996-03-12 Detra Sa Inductive proximity sensor with periodic switching for sensing the presence of objects
EP0492029B1 (fr) * 1990-12-21 1992-11-11 Detra Sa Capteur de proximité inductif
GB9111282D0 (en) * 1991-05-24 1991-07-17 Grau Ltd Inductive sensor
US5153525A (en) * 1991-06-17 1992-10-06 Minnesota Mining And Manufacturing Company Vehicle detector with series resonant oscillator drive
EP0523563A1 (fr) * 1991-07-15 1993-01-20 Omron Corporation Commutateur de proximité
FI89636C (fi) * 1991-12-10 1993-10-25 Valtion Teknillinen Foerfarande foer bestaemning av induktans
FI89415C (fi) * 1992-01-09 1993-09-27 Abb Stroemberg Drives Oy Foerfarande foer att bestaemma kortslutningsinduktansen i en asynkronmaskin
US5410488A (en) * 1992-11-02 1995-04-25 Lorton Aerospace Company Proximity sensor gap measuring method and apparatus
US20090046538A1 (en) * 1995-06-07 2009-02-19 Automotive Technologies International, Inc. Apparatus and method for Determining Presence of Objects in a Vehicle
US8054203B2 (en) * 1995-06-07 2011-11-08 Automotive Technologies International, Inc. Apparatus and method for determining presence of objects in a vehicle
DE19536198B4 (de) * 1995-09-28 2006-03-30 Endress + Hauser Gmbh + Co. Kg Kapazitiver Schalter
SE9902362L (sv) 1999-06-21 2001-02-21 Ericsson Telefon Ab L M Apparat och förfarande för att detektera närhet induktivt
DE10011229B4 (de) * 2000-03-08 2006-05-04 Grohe Water Technology Ag & Co. Kg Berührungssensor
US6281797B1 (en) 2000-04-04 2001-08-28 Marconi Data Systems Inc. Method and apparatus for detecting a container proximate to a transportation vessel hold
US6734796B2 (en) 2000-04-04 2004-05-11 Ian J. Forster Self-check for a detector detecting the proximity of a transportation vessel
US6570377B1 (en) 2000-10-02 2003-05-27 Honeywell International Inc. Systems and method for determining proximity sensor characteristics
DE20105164U1 (de) * 2001-03-23 2001-06-28 Bernstein Ag Induktiver Sicherheitssensor zur Überwachung von Türen und Toren
US7015824B2 (en) * 2002-08-01 2006-03-21 Terion, Inc. Trailer cargo detection using ultrasonic transducers
US6842014B2 (en) * 2003-04-10 2005-01-11 Delphi Technologies, Inc. Methods for determining inductance and resistance of an inductor
BR0301329B1 (pt) * 2003-05-12 2011-09-06 suporte de sensor de proximidade, compressor, placa de válvulas e refrigerador.
US7025189B1 (en) * 2003-08-13 2006-04-11 Glenview Systems Inc. Supply detecting device for money or equivalents
US7548819B2 (en) * 2004-02-27 2009-06-16 Ultra Electronics Limited Signal measurement and processing method and apparatus
DE102004039389B4 (de) * 2004-08-13 2007-08-02 Airbus Deutschland Gmbh Überwachungsschaltung für eine Türe
US7358720B1 (en) 2006-01-25 2008-04-15 Simmonds Precision Products, Inc. Proximity sensor interface
ITRM20060136A1 (it) * 2006-03-10 2007-09-11 Link Formazione S R L Sistema multimediale interattivo
ATE400795T1 (de) * 2006-04-20 2008-07-15 Festo Ag & Co Kg Sensoranordnung mit sensor und signalverarbeitungseinrichtung
DE102006024920B4 (de) * 2006-05-24 2015-08-27 Ifm Electronic Gmbh Induktiver Näherungsschalter
JP2008211762A (ja) * 2007-01-02 2008-09-11 Azuma Systems:Kk 検出装置及び検出方法
JP4978377B2 (ja) * 2007-08-30 2012-07-18 オムロン株式会社 近接センサ
EP2235272A1 (fr) 2007-12-11 2010-10-06 Masco Corporation Of Indiana Dispositif de couplage capacitif pour robinet
WO2009080593A1 (fr) * 2007-12-20 2009-07-02 Robert Buck Procéde de détermination de l'ampleur de la modification de l'amortissement d'une charge et système en vue de l'exécution d'un tel procédé
DE102008029312B3 (de) * 2008-06-20 2009-12-24 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Verfahren zur Wirküberwachung von Schienenbremsen
US8766649B1 (en) * 2009-10-02 2014-07-01 The Boeing Company Proximity sensor interface device and method for its use
EP2429077B1 (fr) * 2010-09-14 2013-04-10 Optosys SA Commutateur de proximité inductif
US10996044B2 (en) * 2012-03-22 2021-05-04 Zhibiao Shao Measurement method for aviation-specific proximity sensor
US9450284B2 (en) * 2013-07-01 2016-09-20 Hamilton Sundstrand Corporation Resonance based cable compensation
US10007017B2 (en) 2014-11-14 2018-06-26 Ultra Electronics Limited Sensor core and sensor
KR102365629B1 (ko) * 2016-04-12 2022-02-21 텍사스 인스트루먼츠 인코포레이티드 차폐된 케이블을 통해 공진기 커패시터에 커플링되는 감지 인덕터를 가지는 센서 공진기를 사용하는 원격 감지
DE102017128471A1 (de) * 2017-11-30 2019-06-06 Pepperl + Fuchs Gmbh Induktiver Näherungsschalter und Verfahren zum Betreiben eines induktiven Näherungsschalters
DE102017128472A1 (de) * 2017-11-30 2019-06-06 Pepperl + Fuchs Gmbh Induktiver Näherungsschalter und Verfahren zum Betreiben eines induktiven Näherungsschalters
JP6918284B2 (ja) * 2018-02-21 2021-08-11 オムロン株式会社 近接センサ
CN110501035B (zh) * 2018-05-18 2022-03-15 好庆科技企业股份有限公司 感测器及感测器的自动校正方法
US11054284B2 (en) 2019-08-06 2021-07-06 The Boeing Company Method of ratiometric proximity sensing
CN113271061B (zh) * 2021-04-21 2023-02-10 华为数字能源技术有限公司 一种光伏系统、功率变换器及测量电感感值的方法
EP4141455B1 (fr) * 2021-08-27 2024-04-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Dispositif de mesure de l'inductance de signaux forts et procédé de mise en oeuvre d'un processus de mesure d'une inductance
CN116046045B (zh) * 2023-01-28 2023-06-13 宜科(天津)电子有限公司 一种电感式传感器的校准方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3454869A (en) * 1966-12-23 1969-07-08 Electro Dev Corp Proximity sensing system
US3569820A (en) * 1969-02-24 1971-03-09 Bourns Inc Proximity detection system

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US3469204A (en) * 1967-09-14 1969-09-23 Whittaker Corp Proximity sensitive on-off oscillator switch circuit
US3514627A (en) * 1968-03-20 1970-05-26 Vapor Corp Proximity switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3454869A (en) * 1966-12-23 1969-07-08 Electro Dev Corp Proximity sensing system
US3569820A (en) * 1969-02-24 1971-03-09 Bourns Inc Proximity detection system

Also Published As

Publication number Publication date
US4219740A (en) 1980-08-26
FR2446485B1 (fr) 1985-08-16
JPH0114545B2 (fr) 1989-03-13
GB2040054B (en) 1983-02-16
CA1155195A (fr) 1983-10-11
JPS6386917A (ja) 1988-04-18
JPH0325969B2 (fr) 1991-04-09
GB2040054A (en) 1980-08-20
JPS5596466A (en) 1980-07-22

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