FR2538542B1 - Dispositif de mesure a capteur capacitif ou resistif et a sortie numerique pour mesures de grandeurs physiques - Google Patents

Dispositif de mesure a capteur capacitif ou resistif et a sortie numerique pour mesures de grandeurs physiques

Info

Publication number
FR2538542B1
FR2538542B1 FR8221858A FR8221858A FR2538542B1 FR 2538542 B1 FR2538542 B1 FR 2538542B1 FR 8221858 A FR8221858 A FR 8221858A FR 8221858 A FR8221858 A FR 8221858A FR 2538542 B1 FR2538542 B1 FR 2538542B1
Authority
FR
France
Prior art keywords
capacitive
measurements
measuring device
digital output
physical quantities
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
Application number
FR8221858A
Other languages
English (en)
Other versions
FR2538542A1 (fr
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 FR8221858A priority Critical patent/FR2538542B1/fr
Publication of FR2538542A1 publication Critical patent/FR2538542A1/fr
Application granted granted Critical
Publication of FR2538542B1 publication Critical patent/FR2538542B1/fr
Expired legal-status Critical Current

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
    • G01D5/24—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
    • G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24404—Interpolation using high frequency signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
FR8221858A 1982-12-28 1982-12-28 Dispositif de mesure a capteur capacitif ou resistif et a sortie numerique pour mesures de grandeurs physiques Expired FR2538542B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8221858A FR2538542B1 (fr) 1982-12-28 1982-12-28 Dispositif de mesure a capteur capacitif ou resistif et a sortie numerique pour mesures de grandeurs physiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8221858A FR2538542B1 (fr) 1982-12-28 1982-12-28 Dispositif de mesure a capteur capacitif ou resistif et a sortie numerique pour mesures de grandeurs physiques

Publications (2)

Publication Number Publication Date
FR2538542A1 FR2538542A1 (fr) 1984-06-29
FR2538542B1 true FR2538542B1 (fr) 1985-12-13

Family

ID=9280549

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8221858A Expired FR2538542B1 (fr) 1982-12-28 1982-12-28 Dispositif de mesure a capteur capacitif ou resistif et a sortie numerique pour mesures de grandeurs physiques

Country Status (1)

Country Link
FR (1) FR2538542B1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963729A (en) * 1989-03-03 1990-10-16 Simmonds Precision Products, Inc. Optically powered sensor system with improved signal conditioning
US5274334A (en) * 1989-12-18 1993-12-28 Honeywell Inc. Calibrated physical parameter value measurement system
DE19838528A1 (de) * 1998-02-05 1999-08-19 Elan Schaltelemente Gmbh & Co Verfahren und Vorrichtung zur Auswertung der Kapazität eines kapazitiven Sensors, insbesondere eines Personendetektors
DE10056806A1 (de) * 2000-11-17 2002-06-13 Wittenstein Ag Ermittlung und/oder Auswertung einer analogen Messgrösse
US6744036B2 (en) * 2002-10-01 2004-06-01 Simmonds Precision Products, Inc. Optically coupled sensor for application to combustible liquids
PL204266B1 (pl) 2003-02-07 2009-12-31 Elektroniczny Zak & Lstrok Ad Sposób i układ elektroniczny do wykrywania obecności środowiska przewodzącego lub dielektrycznego o przenikalności dielektrycznej większej od powietrza
DE102009001695B4 (de) * 2009-03-20 2020-08-20 Ifm Electronic Gmbh Verfahren und Anordnung zur Impedanzmessung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761805A (en) * 1971-06-24 1973-09-25 Western Electric Co Methods of and systems for measuring capacitance using a constant current charging technique
US4065715A (en) * 1975-12-18 1977-12-27 General Motors Corporation Pulse duration modulated signal transducer
US4206648A (en) * 1979-02-26 1980-06-10 Rca Corporation Impedance measuring circuit

Also Published As

Publication number Publication date
FR2538542A1 (fr) 1984-06-29

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Legal Events

Date Code Title Description
ST Notification of lapse