FR2278141A1 - Variable transformer with arm parallel to long air gap - has secondary winding movable along arm to vary transformation - Google Patents

Variable transformer with arm parallel to long air gap - has secondary winding movable along arm to vary transformation

Info

Publication number
FR2278141A1
FR2278141A1 FR7423599A FR7423599A FR2278141A1 FR 2278141 A1 FR2278141 A1 FR 2278141A1 FR 7423599 A FR7423599 A FR 7423599A FR 7423599 A FR7423599 A FR 7423599A FR 2278141 A1 FR2278141 A1 FR 2278141A1
Authority
FR
France
Prior art keywords
arm
gap
air
transformation
vary
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
FR7423599A
Other languages
French (fr)
Other versions
FR2278141B1 (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.)
Societe dElectricite Mors SA
Original Assignee
Societe dElectricite Mors SA
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 Societe dElectricite Mors SA filed Critical Societe dElectricite Mors SA
Priority to FR7423599A priority Critical patent/FR2278141A1/en
Publication of FR2278141A1 publication Critical patent/FR2278141A1/en
Application granted granted Critical
Publication of FR2278141B1 publication Critical patent/FR2278141B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/12—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable coil, winding, or part thereof; having movable shield
    • 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
    • G01D5/2066—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 movement of a single coil with respect to a single other coil
    • 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

Abstract

The primary winding (2) of this variable transformer generates flux in a magnetic circuit that has a long open-circuit parallel air-gap. The secondary is wound on a yoke that slides along one of the parallel arms of the air-gap. The shape and dimensions of the material forming the air-gap cause the flux intensity along the secondary arm to decrease as a linear function. Thus as the secondary is moved along the arm, its output is a linear function of its position. The air-gap can be of linear, circular or helical shape. This gives a transformation ratio that has no discrete steps, a large range and is a linear function.
FR7423599A 1974-07-08 1974-07-08 Variable transformer with arm parallel to long air gap - has secondary winding movable along arm to vary transformation Granted FR2278141A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7423599A FR2278141A1 (en) 1974-07-08 1974-07-08 Variable transformer with arm parallel to long air gap - has secondary winding movable along arm to vary transformation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7423599A FR2278141A1 (en) 1974-07-08 1974-07-08 Variable transformer with arm parallel to long air gap - has secondary winding movable along arm to vary transformation

Publications (2)

Publication Number Publication Date
FR2278141A1 true FR2278141A1 (en) 1976-02-06
FR2278141B1 FR2278141B1 (en) 1976-12-24

Family

ID=9140991

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7423599A Granted FR2278141A1 (en) 1974-07-08 1974-07-08 Variable transformer with arm parallel to long air gap - has secondary winding movable along arm to vary transformation

Country Status (1)

Country Link
FR (1) FR2278141A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510367A1 (en) * 1991-04-26 1992-10-28 Mehnert, Walter, Dr. Inductive position sensor
US5418514A (en) * 1984-10-12 1995-05-23 Smith; Dayle R. AC current sensor and method of making same
US5475302A (en) * 1991-08-16 1995-12-12 Walter Mehnert Inductive pick-up for producing a signal representing the relative positions of two mutually movable bodies

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5418514A (en) * 1984-10-12 1995-05-23 Smith; Dayle R. AC current sensor and method of making same
EP0510367A1 (en) * 1991-04-26 1992-10-28 Mehnert, Walter, Dr. Inductive position sensor
US5323109A (en) * 1991-04-26 1994-06-21 Walter Mehnert Inductive position indicator for monitoring the relative positions of two mutually movable bodies
US5475302A (en) * 1991-08-16 1995-12-12 Walter Mehnert Inductive pick-up for producing a signal representing the relative positions of two mutually movable bodies

Also Published As

Publication number Publication date
FR2278141B1 (en) 1976-12-24

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Legal Events

Date Code Title Description
ST Notification of lapse