FR2311276A1 - Positional variation measurement device - has coreless coils supplied with HF voltage for large rapid movement detection - Google Patents

Positional variation measurement device - has coreless coils supplied with HF voltage for large rapid movement detection

Info

Publication number
FR2311276A1
FR2311276A1 FR7514708A FR7514708A FR2311276A1 FR 2311276 A1 FR2311276 A1 FR 2311276A1 FR 7514708 A FR7514708 A FR 7514708A FR 7514708 A FR7514708 A FR 7514708A FR 2311276 A1 FR2311276 A1 FR 2311276A1
Authority
FR
France
Prior art keywords
voltage
positional variation
measurement device
movement detection
rapid movement
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Withdrawn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
FR7514708A
Other languages
French (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.)
IFELEC
Original Assignee
IFELEC
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 IFELEC filed Critical IFELEC
Priority to FR7514708A priority Critical patent/FR2311276A1/en
Priority to DE19762618585 priority patent/DE2618585A1/en
Publication of FR2311276A1 publication Critical patent/FR2311276A1/en
Withdrawn legal-status Critical Current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
    • G01D5/2275—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 non-ferromagnetic conductive element
    • 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
    • G01D5/2053—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 non-ferromagnetic conductive element

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 device for the measurement of positional variation produces a voltage, e.g. a dc voltage, proportional to the linear motion of the object over the region of interest. The device can cope with rapid large movements without the necessity of an iron core for the flat measurement coils, which are mounted essentially opposite each other, by varying the coupling between the coils using a metal screen (16) moving between them. A higher operating frequency is made possible, a high frequency voltage being supplied to the exciter coil (12) from a generator (11). The screen (16) is attached to the object whose movement is to be measured. The other flat coil (15) acts as a secondary winding driving a suitable measuring circuit (18) whose output voltage represents the position.
FR7514708A 1975-05-12 1975-05-12 Positional variation measurement device - has coreless coils supplied with HF voltage for large rapid movement detection Withdrawn FR2311276A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7514708A FR2311276A1 (en) 1975-05-12 1975-05-12 Positional variation measurement device - has coreless coils supplied with HF voltage for large rapid movement detection
DE19762618585 DE2618585A1 (en) 1975-05-12 1976-04-28 DEVICE FOR MEASURING CHANGES IN LOCATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7514708A FR2311276A1 (en) 1975-05-12 1975-05-12 Positional variation measurement device - has coreless coils supplied with HF voltage for large rapid movement detection

Publications (1)

Publication Number Publication Date
FR2311276A1 true FR2311276A1 (en) 1976-12-10

Family

ID=9155095

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7514708A Withdrawn FR2311276A1 (en) 1975-05-12 1975-05-12 Positional variation measurement device - has coreless coils supplied with HF voltage for large rapid movement detection

Country Status (2)

Country Link
DE (1) DE2618585A1 (en)
FR (1) FR2311276A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041281A2 (en) * 1980-05-12 1981-12-09 Inductive Control Systems B.V. Contactless electric control-handle
EP0074301A2 (en) * 1981-08-28 1983-03-16 The Bendix Corporation Linear position sensor
EP0337939A2 (en) * 1988-03-28 1989-10-18 C.A. Weidmüller GmbH & Co. Inductive sensor arrangement and measuring arrangement determining the relative position of a sensor arrangement
EP0452803A1 (en) * 1990-04-11 1991-10-23 FEV Motorentechnik GmbH & Co. KG Position sensor
EP1902277A1 (en) * 2005-06-27 2008-03-26 KSR International Co. Linear and rotational inductive position sensor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041281A2 (en) * 1980-05-12 1981-12-09 Inductive Control Systems B.V. Contactless electric control-handle
EP0041281A3 (en) * 1980-05-12 1981-12-16 Inductive Control Systems B.V. Contactless electric control-handle
EP0074301A2 (en) * 1981-08-28 1983-03-16 The Bendix Corporation Linear position sensor
EP0074301A3 (en) * 1981-08-28 1985-05-22 The Bendix Corporation Linear position sensor
EP0337939A2 (en) * 1988-03-28 1989-10-18 C.A. Weidmüller GmbH & Co. Inductive sensor arrangement and measuring arrangement determining the relative position of a sensor arrangement
EP0337939A3 (en) * 1988-03-28 1989-10-25 C.A. Weidmuller Gmbh & Co. Inductive sensor arrangement and measuring arrangement determining the relative position of a sensor arrangement
EP0452803A1 (en) * 1990-04-11 1991-10-23 FEV Motorentechnik GmbH & Co. KG Position sensor
EP1902277A1 (en) * 2005-06-27 2008-03-26 KSR International Co. Linear and rotational inductive position sensor
EP1902277A4 (en) * 2005-06-27 2013-01-09 Ksr Tech Co Linear and rotational inductive position sensor

Also Published As

Publication number Publication date
DE2618585A1 (en) 1976-12-02

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Legal Events

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ST Notification of lapse