GB1182438A - Electro-Magnetic Indicator - Google Patents

Electro-Magnetic Indicator

Info

Publication number
GB1182438A
GB1182438A GB2838367A GB2838367A GB1182438A GB 1182438 A GB1182438 A GB 1182438A GB 2838367 A GB2838367 A GB 2838367A GB 2838367 A GB2838367 A GB 2838367A GB 1182438 A GB1182438 A GB 1182438A
Authority
GB
United Kingdom
Prior art keywords
winding
june
electro
tooth
turn
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
GB2838367A
Inventor
Vilmos Torok
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB1182438A publication Critical patent/GB1182438A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
    • G01V3/105—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
    • G01V3/107—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops using compensating coil or loop arrangements
    • 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
    • G01P3/488—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 variable reluctance detectors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Geophysics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

1,182,438. Selective signalling. ALLMANNA SVENSKA ELEKTRISKA A.B. 20 June, 1967 [22 June, 1966], No. 28383/67. Heading G4H. [Also in Division G1] A device for detecting the passage of a tooth on a toothed wheel comprises a ferromagnetic core 1 carrying a primary winding 52, a shortcircuited turn 2 and a pick-up winding 3. A radio-frequency pulse is generated in winding 3 each time a tooth passes the short-circuited turn and is rectified and smoothed and fed to a counter 9 whereby the number of pulses counted is a measure of the angle of rotation of the wheel.
GB2838367A 1966-06-22 1967-06-20 Electro-Magnetic Indicator Expired GB1182438A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE850066A SE313755B (en) 1966-06-22 1966-06-22

Publications (1)

Publication Number Publication Date
GB1182438A true GB1182438A (en) 1970-02-25

Family

ID=20274246

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2838367A Expired GB1182438A (en) 1966-06-22 1967-06-20 Electro-Magnetic Indicator

Country Status (4)

Country Link
CH (1) CH492201A (en)
DE (1) DE1300303B (en)
GB (1) GB1182438A (en)
SE (1) SE313755B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1355131A2 (en) * 2002-04-16 2003-10-22 Weston Aerospace Limited Inductive proximity sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933173C (en) * 1950-10-14 1955-09-22 Siemens Ag Test device, especially for electric traction vehicles, to display the rotary movement of a shaft
CH336671A (en) * 1953-12-31 1959-02-28 British Thomson Houston Co Ltd Device on two parts which can move relative to one another for the precise setting of one part in a position selected from a number of predetermined positions with respect to the other part
US3070742A (en) * 1957-10-15 1962-12-25 Clevite Corp Measuring system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1355131A2 (en) * 2002-04-16 2003-10-22 Weston Aerospace Limited Inductive proximity sensor
EP1355131A3 (en) * 2002-04-16 2006-05-17 Weston Aerospace Limited Inductive proximity sensor

Also Published As

Publication number Publication date
DE1300303B (en) 1969-07-31
CH492201A (en) 1970-06-15
SE313755B (en) 1969-08-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees
PLNP Patent lapsed through nonpayment of renewal fees