FR2243413A1 - Electrical indicator of long linear movements - prism shaped magnetic core inside twin A.C. coils in wheatstone bridge - Google Patents

Electrical indicator of long linear movements - prism shaped magnetic core inside twin A.C. coils in wheatstone bridge

Info

Publication number
FR2243413A1
FR2243413A1 FR7332826A FR7332826A FR2243413A1 FR 2243413 A1 FR2243413 A1 FR 2243413A1 FR 7332826 A FR7332826 A FR 7332826A FR 7332826 A FR7332826 A FR 7332826A FR 2243413 A1 FR2243413 A1 FR 2243413A1
Authority
FR
France
Prior art keywords
coils
magnetic core
shaped magnetic
wheatstone bridge
prism shaped
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
FR7332826A
Other languages
French (fr)
Other versions
FR2243413B1 (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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7332826A priority Critical patent/FR2243413A1/en
Publication of FR2243413A1 publication Critical patent/FR2243413A1/en
Application granted granted Critical
Publication of FR2243413B1 publication Critical patent/FR2243413B1/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
    • G01D5/2208—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 self-induction of the coils
    • G01D5/2216—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 self-induction of the coils by a movable ferromagnetic element, e.g. a core
    • 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
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
    • G01D2205/77—Specific profiles
    • G01D2205/775—Tapered profiles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

A transducer which gives a direct electrico indication of linear movements comprises a prism shaped magnetic core which moves between two coils. These coils are fed with AC and are connected into a form of Wheatstone Bridge to give movements of the core as a linear voltage signal for remote indication of relative movements e.g. in a nuclear, radioactive environment. Several inches of movement can be remotely indicated as a direct linear signal of voltage.
FR7332826A 1973-09-12 1973-09-12 Electrical indicator of long linear movements - prism shaped magnetic core inside twin A.C. coils in wheatstone bridge Granted FR2243413A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7332826A FR2243413A1 (en) 1973-09-12 1973-09-12 Electrical indicator of long linear movements - prism shaped magnetic core inside twin A.C. coils in wheatstone bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7332826A FR2243413A1 (en) 1973-09-12 1973-09-12 Electrical indicator of long linear movements - prism shaped magnetic core inside twin A.C. coils in wheatstone bridge

Publications (2)

Publication Number Publication Date
FR2243413A1 true FR2243413A1 (en) 1975-04-04
FR2243413B1 FR2243413B1 (en) 1976-05-14

Family

ID=9124937

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7332826A Granted FR2243413A1 (en) 1973-09-12 1973-09-12 Electrical indicator of long linear movements - prism shaped magnetic core inside twin A.C. coils in wheatstone bridge

Country Status (1)

Country Link
FR (1) FR2243413A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009125188A1 (en) * 2008-04-11 2009-10-15 University Of Bath A sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009125188A1 (en) * 2008-04-11 2009-10-15 University Of Bath A sensor
GB2471799A (en) * 2008-04-11 2011-01-12 Univ Bath A sensor

Also Published As

Publication number Publication date
FR2243413B1 (en) 1976-05-14

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Legal Events

Date Code Title Description
ST Notification of lapse