GB899704A - Variable magnetic coupling devices - Google Patents

Variable magnetic coupling devices

Info

Publication number
GB899704A
GB899704A GB27871/58A GB2787158A GB899704A GB 899704 A GB899704 A GB 899704A GB 27871/58 A GB27871/58 A GB 27871/58A GB 2787158 A GB2787158 A GB 2787158A GB 899704 A GB899704 A GB 899704A
Authority
GB
United Kingdom
Prior art keywords
coils
disc
discs
alternatively
rotation
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
GB27871/58A
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 dElectronique et dAutomatisme SA
Original Assignee
Societe dElectronique et dAutomatisme 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 dElectronique et dAutomatisme SA filed Critical Societe dElectronique et dAutomatisme SA
Publication of GB899704A publication Critical patent/GB899704A/en
Expired 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

899,704. Transformers and inductances. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Aug. 29, 1958 [Nov. 13, 1957], No. 27871/58. Class 38 (2). A variable ratio transformer or variable inductance comprises two discs 24, 23 (Fig. 4) of iron or steel strip wound in a spiral and carrying respectively primary and secondary coils formed on adjacent faces by printed wiring, the discs being assembled on a common axis and separated by a narrow air gap so that coupling between the windings can be varied by rotation of one disc 23 or alternatively by rotation of an interposed diamagnetic screening member. Each disc may carry two coils 2, 3 shaped as shown in Fig. 1 and connected so that, during one half cycle, current flows in the directions shown by arrows 6, 7. Alternatively, one disc may have four coils 11, 12, 13, 14 (Fig. 2) or more. The screening member has a number of sector-shaped blades equal to half the number of coils on the disc having the greater number of coils, each blade being wide enough to cover one of these coils when centred over it. Specification 840,099 is referred to.
GB27871/58A 1957-11-13 1958-08-29 Variable magnetic coupling devices Expired GB899704A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR151451 1957-11-13

Publications (1)

Publication Number Publication Date
GB899704A true GB899704A (en) 1962-06-27

Family

ID=8650112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27871/58A Expired GB899704A (en) 1957-11-13 1958-08-29 Variable magnetic coupling devices

Country Status (3)

Country Link
US (1) US3090933A (en)
FR (1) FR1187962A (en)
GB (1) GB899704A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3320565A (en) * 1961-10-19 1967-05-16 Gen Motors Corp Inductor device
US3382472A (en) * 1966-07-06 1968-05-07 Joachim A. Maass Relatively movable coils in slotted cores
CA878140A (en) * 1969-05-12 1971-08-10 S. Mackelvie John Signal transmitting system for rotating apparatus
US4123735A (en) * 1975-02-25 1978-10-31 Mash Dmitry M Induction-type meter for measuring mechanical quantities
US4507638A (en) * 1981-12-10 1985-03-26 Amnon Brosh Rotary position sensors employing planar coils
FR2549955B1 (en) * 1983-07-29 1985-10-04 Renault ANGULAR DISPLACEMENT SENSOR, IN PARTICULAR FOR TORQUE DETECTION IN POWER STEERING
US4638250A (en) * 1984-01-30 1987-01-20 Fiscint, Inc. Contactless position sensor with coreless coil coupling component
US4777436A (en) * 1985-02-11 1988-10-11 Sensor Technologies, Inc. Inductance coil sensor
US4985691A (en) * 1986-02-26 1991-01-15 University Of Pittsburgh Contactless motion sensor
DE3713304A1 (en) * 1987-04-18 1988-11-03 Heldt & Rossi Servoelektronik DEVICE FOR DETECTING TURNING ANGLE POSITION IN ROTARY DRIVES
EP0295609A3 (en) * 1987-06-15 1991-01-09 Kollmorgen Corporation Printed circuit windings for screened inductance sensors, especially sensors for level measurement
NL8702531A (en) * 1987-10-23 1989-05-16 Philips Nv ROTATING TRANSFORMER.
US4914390A (en) * 1988-08-11 1990-04-03 Eastman Kodak Company Transducer for determining the instantaneous relative angular positions between two members
EP0743508A2 (en) * 1995-05-16 1996-11-20 Mitutoyo Corporation Induced current position transducer
ATE256857T1 (en) * 2000-02-01 2004-01-15 Cherry Gmbh POSITIONER
AU2001257479A1 (en) * 2000-06-01 2001-12-11 The J.M. Ney Company Non-contact position sensing apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR955724A (en) * 1945-07-11 1950-01-19
US2609531A (en) * 1947-12-03 1952-09-02 Karl F Kirchner Inductance device
US2585050A (en) * 1949-01-07 1952-02-12 Beatrice George Marti Variable transformer
US2629860A (en) * 1949-08-05 1953-02-24 Frank O Chesus Inductance tuning unit
US2630529A (en) * 1950-02-23 1953-03-03 Estle R Mann Tachometer
US2900612A (en) * 1955-09-26 1959-08-18 Inductosyn Corp Variable coupling transformers
US2942212A (en) * 1956-01-31 1960-06-21 British Thomson Houston Co Ltd Position sensing devices
US2921280A (en) * 1957-05-13 1960-01-12 Sperry Rand Corp Variable coupling transformer device

Also Published As

Publication number Publication date
US3090933A (en) 1963-05-21
FR1187962A (en) 1959-09-17

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