FR2457003A1 - Capteur capacitif a dielectrique mobile - Google Patents

Capteur capacitif a dielectrique mobile

Info

Publication number
FR2457003A1
FR2457003A1 FR7912346A FR7912346A FR2457003A1 FR 2457003 A1 FR2457003 A1 FR 2457003A1 FR 7912346 A FR7912346 A FR 7912346A FR 7912346 A FR7912346 A FR 7912346A FR 2457003 A1 FR2457003 A1 FR 2457003A1
Authority
FR
France
Prior art keywords
dielectric
bridge
uniform dielectric
balance
capacitor bridge
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.)
Withdrawn
Application number
FR7912346A
Other languages
English (en)
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
Priority to FR7912346A priority Critical patent/FR2457003A1/fr
Publication of FR2457003A1 publication Critical patent/FR2457003A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G5/00—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
    • H01G5/01—Details
    • H01G5/013—Dielectrics
    • H01G5/0134—Solid dielectrics
    • H01G5/0138—Solid dielectrics with movable dielectrics
    • 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
    • G01D5/2403—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 moving plates, not forming part of the capacitor itself, e.g. shields
    • 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
    • G01D5/2412—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 overlap
    • G01D5/2415—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 overlap adapted for encoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

CAPTEUR CAPACITIF COMPRENANT QUATRE CONDENSATEURS MONTES EN PONT. SUIVANT L'INVENTION, LES SURFACES CONDUCTRICES FORMANT ARMATURES SONT DISPOSEES DE TELLE SORTE QUE CHAQUE SURFACE CONDUCTRICE D'UNE PAIRE SOIT EN REGARD RESPECTIVEMENT PAR MOITIE DE DEUX SURFACES CONDUCTRICES FORMANT L'AUTRE PAIRE. DANS L'EXEMPLE REPRESENTE LES QUATRE ARMATURES SONT RESPECTIVEMENT AP, BP, CP ET DP REPRESENTEES RESPECTIVEMENT EN TRAITS PLEINS ET POINTILLES. LE DIELECTRIQUE EST ICI EN FORME DE DAMIERS L ET M DE PERMITTIVITES DIFFERENTES. IL EST MOBILE SUIVANT L'AXE XY. APPLICATIONS : MESURE DES FAIBLES ET TRES FAIBLES DEPLACEMENTS RECTILIGNES ET ANGULAIRES. MESURE DES GRANDS DEPLACEMENTS. MESURE DES ACCELERATIONS, DES PRESSIONS, DES FORCES... APPLICATION A LA LECTURE DES DISQUES DE STEREOPHONIE. REALISATION DE SISMOMETRES, BAROMETRES, ACCELEROMETRES...
FR7912346A 1979-05-15 1979-05-15 Capteur capacitif a dielectrique mobile Withdrawn FR2457003A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7912346A FR2457003A1 (fr) 1979-05-15 1979-05-15 Capteur capacitif a dielectrique mobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7912346A FR2457003A1 (fr) 1979-05-15 1979-05-15 Capteur capacitif a dielectrique mobile

Publications (1)

Publication Number Publication Date
FR2457003A1 true FR2457003A1 (fr) 1980-12-12

Family

ID=9225485

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912346A Withdrawn FR2457003A1 (fr) 1979-05-15 1979-05-15 Capteur capacitif a dielectrique mobile

Country Status (1)

Country Link
FR (1) FR2457003A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483603A1 (fr) * 1980-05-27 1981-12-04 Meyer Hans Dispositif pour la mesure capacitive de deplacements
EP0347747A1 (fr) * 1988-06-20 1989-12-27 Hans Rudolf Weber Condensateur pour dispositif de mesure à senseur capacitif
EP0551066A1 (fr) * 1991-12-30 1993-07-14 Georg Brasseur Capteur de rotation capacitif
FR2748806A1 (fr) * 1996-05-20 1997-11-21 Magneti Marelli France Capteur d'angle de type capacitif, notamment pour colonne de direction d'un vehicule automobile
WO1998053275A1 (fr) * 1997-05-16 1998-11-26 Sc2N Capteur d'angle de type capacitif, notamment pour colonne de direction d'un vehicule automobile

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483603A1 (fr) * 1980-05-27 1981-12-04 Meyer Hans Dispositif pour la mesure capacitive de deplacements
US4449179A (en) * 1980-05-27 1984-05-15 Meyer Hans Ulrich Means for capacitive measurement of displacements
EP0347747A1 (fr) * 1988-06-20 1989-12-27 Hans Rudolf Weber Condensateur pour dispositif de mesure à senseur capacitif
EP0551066A1 (fr) * 1991-12-30 1993-07-14 Georg Brasseur Capteur de rotation capacitif
US5598153A (en) * 1991-12-30 1997-01-28 Brasseur; Georg Capacitive angular displacement transducer
FR2748806A1 (fr) * 1996-05-20 1997-11-21 Magneti Marelli France Capteur d'angle de type capacitif, notamment pour colonne de direction d'un vehicule automobile
WO1998053275A1 (fr) * 1997-05-16 1998-11-26 Sc2N Capteur d'angle de type capacitif, notamment pour colonne de direction d'un vehicule automobile
US6433559B1 (en) 1997-05-16 2002-08-13 Sc2N Capacitive angle sensor, in particular for motor vehicle steering column

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Legal Events

Date Code Title Description
ST Notification of lapse