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GB1475660A - Device utilizing a magnetically operated solid state switch - Google Patents

Device utilizing a magnetically operated solid state switch

Info

Publication number
GB1475660A
GB1475660A GB2312275A GB2312275A GB1475660A GB 1475660 A GB1475660 A GB 1475660A GB 2312275 A GB2312275 A GB 2312275A GB 2312275 A GB2312275 A GB 2312275A GB 1475660 A GB1475660 A GB 1475660A
Authority
GB
United Kingdom
Prior art keywords
switch
solid state
magnet
magnetically operated
state switch
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
GB2312275A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1475660A publication Critical patent/GB1475660A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

1475660 Measuring angular velocity electrically FORD MOTOR CO Ltd 27 May 1975 [20 Sept 1974] 23122/75 Heading G1N The angular velocity of coupled shafts 22, 26, Fig. 1, is determined by the frequency of operation of a magnetically operated solid state switch 48, as produced by a cylindrical permanent magnet 44 fixed to shaft 22, having a plurality of alternate N S poles round the circumference. The switching action is accentuated by a fixed permanent magnet 76 which is positioned to enhance the magnetic flux through switch 48 when faced by a S pole on magnet 44 and reduces the flux when the switch is faced by a N pole on magnet 44. The switch 48 may comprise a Hall plate element which switches a transistor on and off. The device may be used to measure the speed of the transmission of a motor vehicle, and a speedometer cable may also be plugged into the squared upper end 74 of the driven shaft 22.
GB2312275A 1974-09-20 1975-05-27 Device utilizing a magnetically operated solid state switch Expired GB1475660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50801774A 1974-09-20 1974-09-20

Publications (1)

Publication Number Publication Date
GB1475660A true GB1475660A (en) 1977-06-01

Family

ID=24021044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2312275A Expired GB1475660A (en) 1974-09-20 1975-05-27 Device utilizing a magnetically operated solid state switch

Country Status (2)

Country Link
DE (1) DE2539548A1 (en)
GB (1) GB1475660A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2848738A1 (en) * 2002-12-12 2004-06-18 Bosch Gmbh Robert Electric motor for windscreen wiper device of automobile, has position determining unit fixed on output unit by crimping, where output unit has bearing surface following contour of determining unit axially installed to shaft

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2647818C2 (en) * 1976-10-22 1985-02-14 Robert Bosch Gmbh, 7000 Stuttgart Device for emitting an electrical signal
US4119911A (en) * 1977-04-22 1978-10-10 Johnson Clark E Jun Magnetoresistor displacement sensor using a magnetoresistor positioned between relatively moving magnetized toothed members
JPS5436961A (en) * 1977-08-29 1979-03-19 Nissan Motor Angleeoffrotation detector
US4385276A (en) * 1980-01-28 1983-05-24 Black & Decker Inc. Mounting of semiconductor sensing means for an electromagnetic tachometer in a portable electric tool
US4829248A (en) * 1984-09-20 1989-05-09 Loubier Robert J Hall effect sensing apparatus and method
US4897914A (en) * 1984-09-20 1990-02-06 Loubier Robert J Method of making a magnetic-encoding device having hall effect devices
DE202009018762U1 (en) * 2009-09-26 2013-02-27 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt Device for detecting the rotational speed and / or the direction of rotation of a rotary drive of a motor vehicle
EP3471115B1 (en) * 2017-10-16 2020-05-13 Baumer IVO GmbH & Co. KG Device for generating a voltage pulse during the rotation of a rotating shaft mounted around a rotation axis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2848738A1 (en) * 2002-12-12 2004-06-18 Bosch Gmbh Robert Electric motor for windscreen wiper device of automobile, has position determining unit fixed on output unit by crimping, where output unit has bearing surface following contour of determining unit axially installed to shaft

Also Published As

Publication number Publication date
DE2539548A1 (en) 1976-07-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee