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CA2429164A1 - Methode de mesure sans contact et appareil servant a produire un signa l representatif d'une distance separant des surfaces opposees - Google Patents

Methode de mesure sans contact et appareil servant a produire un signa l representatif d'une distance separant des surfaces opposees Download PDF

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Publication number
CA2429164A1
CA2429164A1 CA002429164A CA2429164A CA2429164A1 CA 2429164 A1 CA2429164 A1 CA 2429164A1 CA 002429164 A CA002429164 A CA 002429164A CA 2429164 A CA2429164 A CA 2429164A CA 2429164 A1 CA2429164 A1 CA 2429164A1
Authority
CA
Canada
Prior art keywords
distance
plate
signal representative
producing
measuring method
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
CA002429164A
Other languages
English (en)
Other versions
CA2429164C (fr
Inventor
Gilles Missout
Francois Lalonde
Jean-Marc Bourgeois
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.)
Hydro Quebec
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
Publication of CA2429164A1 publication Critical patent/CA2429164A1/fr
Application granted granted Critical
Publication of CA2429164C publication Critical patent/CA2429164C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G01B7/144—Measuring play on bearings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

La présente invention concerne un procédé de mesure sans contact et un dispositif servant à produire un signal représentatif d'une distance séparan t des surfaces opposées d'une première et d'une seconde pièce, lesdites pièces étant séparées par une distance restreinte, comme dans le cas du rotor et du stator d'une machine à rotation électrique. Le procédé se caractérise par la mise en place d'un détecteur sur la surface de la première pièce. Le détecte ur comprend des première et seconde plaques conductrices superposées, parallèle s et électriquement isolées l'une de l'autre. La seconde plaque se trouve entr e la première plaque et la surface de la première pièce. La seconde plaque reçoit un signal haute fréquence via une résistance. Une impédance élevée, u ne capacité d'entrée faible, une tension amplifiée à gain unitaire sont introduits via la résistance, en même temps que le signal haute fréquence. L a seconde plaque reçoit un signal de sortie de l'amplificateur. Le signal de sortie de l'amplificateur est directement proportionnel à la distance entre les deux surfaces.
CA002429164A 2000-11-16 2001-11-07 Methode de mesure sans contact et appareil servant a produire un signa l representatif d'une distance separant des surfaces opposees Expired - Lifetime CA2429164C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/713,005 2000-11-16
US09/713,005 US6552667B1 (en) 2000-11-16 2000-11-16 Non-contact measuring method and apparatus for producing a signal representative of a distance between facing surfaces
PCT/CA2001/001571 WO2002040935A2 (fr) 2000-11-16 2001-11-07 Procede de mesure sans contact et dispositif servant a produire un signal representatif d'une distance separant des surfaces opposees

Publications (2)

Publication Number Publication Date
CA2429164A1 true CA2429164A1 (fr) 2002-05-23
CA2429164C CA2429164C (fr) 2007-01-09

Family

ID=24864386

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002429164A Expired - Lifetime CA2429164C (fr) 2000-11-16 2001-11-07 Methode de mesure sans contact et appareil servant a produire un signa l representatif d'une distance separant des surfaces opposees

Country Status (12)

Country Link
US (1) US6552667B1 (fr)
EP (1) EP1334328B1 (fr)
JP (1) JP3793154B2 (fr)
AR (1) AR031323A1 (fr)
AT (1) ATE277338T1 (fr)
AU (1) AU2002223318A1 (fr)
CA (1) CA2429164C (fr)
DE (1) DE60105839T2 (fr)
DK (1) DK1334328T3 (fr)
ES (1) ES2227323T3 (fr)
PT (1) PT1334328E (fr)
WO (1) WO2002040935A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7256588B2 (en) 2004-04-16 2007-08-14 General Electric Company Capacitive sensor and method for non-contacting gap and dielectric medium measurement
US6989679B2 (en) * 2004-06-03 2006-01-24 General Electric Company Non-contact capacitive sensor and cable with dual layer active shield
JP4536602B2 (ja) * 2005-06-09 2010-09-01 三菱電機株式会社 ギャップ検出装置
DE102005039455B4 (de) * 2005-08-18 2007-06-06 Forschungszentrum Jülich GmbH Implantat zum Einführen in Hohlkörper, Cochleaimplantat, Anordnung aus einem Implantat und Verfahren zur Herstellung
US7671607B2 (en) * 2007-09-06 2010-03-02 Honeywell International Inc. System and method for measuring air bearing gap distance
WO2010050607A1 (fr) * 2008-10-31 2010-05-06 株式会社フジクラ Capteur de type capacitif
DE102009028228A1 (de) * 2009-08-04 2011-02-17 Ball Packaging Europe Gmbh Vorrichtung und Verfahren zur Oberflächenbearbeitung mit einer Prüfstation
TWI472757B (zh) * 2011-12-29 2015-02-11 Ind Tech Res Inst 具有可調範圍的非接觸式量測裝置
WO2014101943A1 (fr) * 2012-12-27 2014-07-03 Mc-Monitoring S.A. Circuit d'attaque pour capteur capacitif d'entrefer
US9279655B2 (en) * 2013-02-26 2016-03-08 The United States Of America As Represented By The Secretary Of The Navy Non-contact electrical machine air gap measurement tool

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1191261A (fr) 1983-12-14 1985-07-30 Francois Lalonde Appareil de mesure dynamique et sans contact de faibles distances
EP0277421A1 (fr) * 1986-12-05 1988-08-10 The University Of Western Australia Dispositif de capteurs de la capacitance
US5070302A (en) * 1989-09-05 1991-12-03 Eastman Kodak Company Capacitance probe for measuring a width of a clearance between parts
CA2041231C (fr) * 1991-04-25 1999-02-16 Marius Cloutier Mesure dynamique et sans contact de deplacement ou de permittivite a l'aide d'un capteur capacitif
US6114862A (en) * 1996-02-14 2000-09-05 Stmicroelectronics, Inc. Capacitive distance sensor
US6307385B1 (en) * 1997-12-30 2001-10-23 Vibrosystm, Inc. Capacitance measuring circuit for a capacitive sensor

Also Published As

Publication number Publication date
ES2227323T3 (es) 2005-04-01
WO2002040935A3 (fr) 2003-01-03
EP1334328B1 (fr) 2004-09-22
CA2429164C (fr) 2007-01-09
JP2004513377A (ja) 2004-04-30
PT1334328E (pt) 2005-02-28
ATE277338T1 (de) 2004-10-15
DK1334328T3 (da) 2005-01-24
DE60105839D1 (de) 2004-10-28
WO2002040935A2 (fr) 2002-05-23
AU2002223318A1 (en) 2002-05-27
JP3793154B2 (ja) 2006-07-05
US6552667B1 (en) 2003-04-22
DE60105839T2 (de) 2005-10-06
AR031323A1 (es) 2003-09-17
EP1334328A2 (fr) 2003-08-13

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