FR2412053A1 - Linear or angular displacement measuring device - has transformer with electromagnetic transducer powered by pulse generator via amplifier for sampling - Google Patents

Linear or angular displacement measuring device - has transformer with electromagnetic transducer powered by pulse generator via amplifier for sampling

Info

Publication number
FR2412053A1
FR2412053A1 FR7737635A FR7737635A FR2412053A1 FR 2412053 A1 FR2412053 A1 FR 2412053A1 FR 7737635 A FR7737635 A FR 7737635A FR 7737635 A FR7737635 A FR 7737635A FR 2412053 A1 FR2412053 A1 FR 2412053A1
Authority
FR
France
Prior art keywords
linear
angular displacement
amplifier
transformer
pulse generator
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
FR7737635A
Other languages
French (fr)
Other versions
FR2412053B1 (en
Inventor
Bernard Sellier
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Priority to FR7737635A priority Critical patent/FR2412053A1/en
Publication of FR2412053A1 publication Critical patent/FR2412053A1/en
Application granted granted Critical
Publication of FR2412053B1 publication Critical patent/FR2412053B1/fr
Granted 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
    • G01D5/20—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
    • G01D5/22—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 differentially influencing two coils
    • G01D5/225—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 differentially influencing two coils by influencing the mutual induction between the two coils
    • G01D5/2258—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 differentially influencing two coils by influencing the mutual induction between the two coils by a movable ferromagnetic element, e.g. core
    • G01D5/2266—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 differentially influencing two coils by influencing the mutual induction between the two coils by a movable ferromagnetic element, e.g. core specially adapted circuits therefor
    • 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
    • G01D5/204—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 mutual induction between two or more coils
    • G01D5/2046—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 mutual induction between two or more coils by a movable ferromagnetic element, e.g. a core

Landscapes

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

Abstract

The linear or angular displacement is sensed by measuring voltage delivered by transformer whose coupling depends on position of moving object. Measurements are processed by digital processor operating in real time. An electromagnetic transducer (1) is powered from pulse generator (4) via an amplifier (3). The transducer output winding (5) is coupled to an amplifier (7) matched for impedance and amplitude and whose output is sampled (9, 10). Sampling circuits are controlled from pulse the generator with delays given by time between leading and trailing edges of waveform. Differential input amplifier (13) receives sampler outputs to provide difference value for comparison purposes.
FR7737635A 1977-12-14 1977-12-14 Linear or angular displacement measuring device - has transformer with electromagnetic transducer powered by pulse generator via amplifier for sampling Granted FR2412053A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7737635A FR2412053A1 (en) 1977-12-14 1977-12-14 Linear or angular displacement measuring device - has transformer with electromagnetic transducer powered by pulse generator via amplifier for sampling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7737635A FR2412053A1 (en) 1977-12-14 1977-12-14 Linear or angular displacement measuring device - has transformer with electromagnetic transducer powered by pulse generator via amplifier for sampling

Publications (2)

Publication Number Publication Date
FR2412053A1 true FR2412053A1 (en) 1979-07-13
FR2412053B1 FR2412053B1 (en) 1982-03-12

Family

ID=9198827

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7737635A Granted FR2412053A1 (en) 1977-12-14 1977-12-14 Linear or angular displacement measuring device - has transformer with electromagnetic transducer powered by pulse generator via amplifier for sampling

Country Status (1)

Country Link
FR (1) FR2412053A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1109434A (en) * 1964-04-17 1968-04-10 Messen Jaschin G A Improvements in or relating to electrical measuring apparatus
DE1673985A1 (en) * 1968-03-16 1971-11-25 Prematechnik Ges Fuer Verfahre Electric remote transmitter
FR2321681A1 (en) * 1975-08-21 1977-03-18 Valeron Corp ELECTRONIC DEVICE FOR DIMENSIONAL SIZING OF A PART

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1109434A (en) * 1964-04-17 1968-04-10 Messen Jaschin G A Improvements in or relating to electrical measuring apparatus
DE1673985A1 (en) * 1968-03-16 1971-11-25 Prematechnik Ges Fuer Verfahre Electric remote transmitter
FR2321681A1 (en) * 1975-08-21 1977-03-18 Valeron Corp ELECTRONIC DEVICE FOR DIMENSIONAL SIZING OF A PART

Also Published As

Publication number Publication date
FR2412053B1 (en) 1982-03-12

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CL Concession to grant licences
ST Notification of lapse