FR2987898B1 - Dispositif pour mesurer une valeur proportionnelle a un rapport d'inductances ou de capacites de deux composants inductifs ou capacitifs, et procede correspondant - Google Patents

Dispositif pour mesurer une valeur proportionnelle a un rapport d'inductances ou de capacites de deux composants inductifs ou capacitifs, et procede correspondant

Info

Publication number
FR2987898B1
FR2987898B1 FR1351929A FR1351929A FR2987898B1 FR 2987898 B1 FR2987898 B1 FR 2987898B1 FR 1351929 A FR1351929 A FR 1351929A FR 1351929 A FR1351929 A FR 1351929A FR 2987898 B1 FR2987898 B1 FR 2987898B1
Authority
FR
France
Prior art keywords
inductive
measuring
capacitive components
inductance
corresponding 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.)
Expired - Fee Related
Application number
FR1351929A
Other languages
English (en)
Other versions
FR2987898A1 (fr
Inventor
Ralf Monkemoller
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.)
Paragon AG
Original Assignee
Paragon AG
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 Paragon AG filed Critical Paragon AG
Publication of FR2987898A1 publication Critical patent/FR2987898A1/fr
Application granted granted Critical
Publication of FR2987898B1 publication Critical patent/FR2987898B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G01D5/20—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 inductance, e.g. by a movable armature
    • 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
    • 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
    • G01D5/20—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 inductance, e.g. by a movable armature
    • G01D5/2006—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 inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
    • G01D5/2013—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 inductance, e.g. by a movable armature by influencing the self-induction of one or more coils by a movable ferromagnetic element, e.g. a core
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/10—AC or DC measuring bridges
    • G01R17/105—AC or DC measuring bridges for measuring impedance or resistance
    • 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
    • G01R27/2605—Measuring capacitance
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

Dispositif (1) ou procédé pour mesurer une valeur (U ) proportionnelle à un rapport d'inductances ou de capacités de deux composants inductifs ou capacitifs (2, 3) comportant une première branche de mesure (4), et une deuxième branche de mesure (5), un élément de commande (9) permettant d'appliquer un saut de tension simultanément aux deux branches de mesure (4, 5) et de prédéterminer un intervalle de temps (td) pour le temps à partir du saut de tension, et un circuit d'échantillonnage (15) qui peut être déclenché par l'élément de commande (9), après l'écoulement de l'intervalle de temps prédéterminable, et qui permet de recueillir une tension différentielle (U entre les deux résistances de mesure (10, 13) et de la mettre à disposition, côté sortie, en tant que valeur de mesure (U ) proportionnelle au rapport entre les deux inductances ou capacités des deux composants inductifs ou capacitifs (2, 3).
FR1351929A 2012-03-09 2013-03-05 Dispositif pour mesurer une valeur proportionnelle a un rapport d'inductances ou de capacites de deux composants inductifs ou capacitifs, et procede correspondant Expired - Fee Related FR2987898B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012004913.7A DE102012004913B4 (de) 2012-03-09 2012-03-09 Vorrichtung zur Bestimmung eines zu einem Verhältnis von Induktivitäten bzw. Kapazitäten zweier induktiver bzw. kapazitiver Bauteile proportionalen Messwerts und entsprechendes Verfahren

Publications (2)

Publication Number Publication Date
FR2987898A1 FR2987898A1 (fr) 2013-09-13
FR2987898B1 true FR2987898B1 (fr) 2016-11-11

Family

ID=49029409

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1351929A Expired - Fee Related FR2987898B1 (fr) 2012-03-09 2013-03-05 Dispositif pour mesurer une valeur proportionnelle a un rapport d'inductances ou de capacites de deux composants inductifs ou capacitifs, et procede correspondant

Country Status (3)

Country Link
CN (1) CN103308774B (fr)
DE (1) DE102012004913B4 (fr)
FR (1) FR2987898B1 (fr)

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208785A1 (de) * 1982-03-11 1983-09-22 Robert Bosch Gmbh, 7000 Stuttgart Lagesensor
DE3343885C2 (de) * 1983-04-21 1996-12-12 Wabco Gmbh Induktiver Sensor
DE3536020A1 (de) * 1985-10-09 1987-04-09 Erwin Halstrup Schaltung zur veraenderung oder linearisierung einer uebertragungskennlinie sowie danach durchgefuehrtes verfahren
JP2550621B2 (ja) * 1987-11-17 1996-11-06 オムロン株式会社 高周波発振型近接スイッチ
US5594353A (en) * 1995-05-11 1997-01-14 Elsag International N.V. Method and apparatus for measuring the change in capacitance values in dual capacitors
AT401826B (de) * 1995-06-01 1996-12-27 Peter Ing Klementschitz Messverfahren
JPH11178197A (ja) * 1997-12-08 1999-07-02 Hioki Ee Corp 交流測定器
GB2339287B (en) * 1998-07-09 2002-12-24 Taylor Hobson Ltd Transducer circuit
DE19832019A1 (de) * 1998-07-16 2000-01-20 Bosch Gmbh Robert Verfahren und Schaltungsanordnung zum Überwachen eines Zündkreises für eine Sicherheitseinrichtung in einem Fahrzeug
DE10018650C2 (de) * 1999-05-07 2002-05-16 Walcher Mestechnik Gmbh Auswerteschaltung für einen Sensor
US6366099B1 (en) * 1999-12-21 2002-04-02 Conrad Technologies, Inc. Differential capacitance sampler
DE60135142D1 (de) * 2000-11-23 2008-09-11 Hitachi Comp Products Europ S Kapazitiver messwertgeber
EP1556669A1 (fr) * 2002-10-31 2005-07-27 Harald Philipp Capteur de position capacitif a transfert de charge
JP2004219089A (ja) * 2003-01-09 2004-08-05 Kura Gijutsu Kenkyusho:Kk 回路素子の定数及び定数差検出回路及びそれを用いた位置検出装置及び導体の欠陥或いは有無の識別検査装置及びトルクセンサ
JP2006177895A (ja) * 2004-12-24 2006-07-06 Seiko Instruments Inc 静電容量／電圧変換装置および力学量センサ
CN101349716B (zh) * 2008-07-22 2012-06-20 上海海事大学 微电容参比测量电路
CN101551420B (zh) * 2009-05-08 2010-12-08 北京航空航天大学 一种mems器件微弱电容检测电路
WO2010132607A2 (fr) * 2009-05-13 2010-11-18 Synaptics Incorporated Dispositif de détection capacitive
US8188754B2 (en) * 2009-07-15 2012-05-29 Maxim Integrated Products, Inc. Method and apparatus for sensing capacitance value and converting it into digital format
DE102011013559B8 (de) * 2011-03-10 2013-01-10 iSEMcon GmbH Schaltungs- oder Messanordnung zur kapazitiven, berührenden und/oder berührungslosen Überwachung eines Füllstandes und/oder einer Leckage leitfähiger Medien und Verfahren hierzu

Also Published As

Publication number Publication date
DE102012004913B4 (de) 2014-04-10
CN103308774A (zh) 2013-09-18
FR2987898A1 (fr) 2013-09-13
CN103308774B (zh) 2017-09-12
DE102012004913A1 (de) 2013-09-12

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