GB909023A - Magnetic means for indicating the movements and stoppages of movable objects - Google Patents

Magnetic means for indicating the movements and stoppages of movable objects

Info

Publication number
GB909023A
GB909023A GB3730560A GB3730560A GB909023A GB 909023 A GB909023 A GB 909023A GB 3730560 A GB3730560 A GB 3730560A GB 3730560 A GB3730560 A GB 3730560A GB 909023 A GB909023 A GB 909023A
Authority
GB
United Kingdom
Prior art keywords
magnetic
voltage
winding
indicating
indicates
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
GB3730560A
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.)
Forges et Ateliers de Constructions Electriques de Jeumont SA
Original Assignee
Forges et Ateliers de Constructions Electriques de Jeumont 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 Forges et Ateliers de Constructions Electriques de Jeumont SA filed Critical Forges et Ateliers de Constructions Electriques de Jeumont SA
Publication of GB909023A publication Critical patent/GB909023A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/163—Detection devices
    • B61L1/165—Electrical
    • 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
    • G01D5/2006—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 self-induction of one or more coils
    • G01D5/2033—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 self-induction of one or more coils controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet
    • 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
    • G01D5/2241—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 controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)

Abstract

909,023. Locating magnetic bodies. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUE DE JEUMONT. Oct. 31, 1960 [Nov. 2, 1959], No. 37305/60. Class 37. [Also in Group XXX] A device for indicating the movement of a magnetizable or magnetic body includes a gapless saturable magnetic core carrying a winding, means for saturating the core such that the saturated condition is departed from, by reason of disturbance of the saturating magnetic field by the body, only when the latter is in the proximity of the device, and means for indicating the reactance of the coil. A constant A.C. voltage is applied across the resistor Z, Fig. 1, and the winding on iron core C, which is saturated by the field of a permanent or electromagnet P, the departure from saturation produced by the presence of the magnetic body S in the intervening gap being indicated by the drop in voltage across resistor Z produced by the increase in reactance of the winding. The position of the skip of a mine hoist B, Fig. 3, of several different stages, each provided with a corresponding magnetic member S 1 , and moving perpendicular to the plane of the paper, is indicated by inequality in the currents i 1 and i 2 , the resulting current in the secondary winding being fed to relay M to operate control or indication circuit D. If the skip itself is magnetic, its presence is indicated by a decrease in voltage across impedance Z<SP>1</SP>. Another embodiment (see Group XX), indicates, by use of a transistor relay, the passage of railway vehicles. The circuit of a further embodiment, Fig. 6, indicates the direction of movement of a body by the sequence of the polarity changes of the voltage across the terminals of relay Mp. A further embodiment, Fig. 7, in which the cores have D.C. windings e 1 and e 2 and q 1 and q 2 , producing magnetic fluxes in, opposite senses, indicates the direction of movement of a body provided with a magnet P 1 , and the polarity of the magnet with respect to cores C 1 and C 2 .
GB3730560A 1959-11-02 1960-10-31 Magnetic means for indicating the movements and stoppages of movable objects Expired GB909023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR809079A FR1248469A (en) 1959-11-02 1959-11-02 Indicators of movement of moving objects using their magnetic action on electromagnetic sensors

Publications (1)

Publication Number Publication Date
GB909023A true GB909023A (en) 1962-10-24

Family

ID=8720796

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3730560A Expired GB909023A (en) 1959-11-02 1960-10-31 Magnetic means for indicating the movements and stoppages of movable objects

Country Status (2)

Country Link
FR (1) FR1248469A (en)
GB (1) GB909023A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662257A (en) * 1969-09-08 1972-05-09 Fujisash Ind Ltd Position detector using a switchable magnetic core
US4006408A (en) * 1972-03-02 1977-02-01 Tdk Electronics Company, Limited Magnetic material detecting device
US4008432A (en) * 1972-03-02 1977-02-15 Tdk Electronics Company, Limited Apparatus for detecting an external magnetic field
US4122392A (en) * 1975-08-20 1978-10-24 Nippon Steel Corporation System of detecting a change in the charge put in a metallurgical furnace or the like
US4140971A (en) * 1977-11-10 1979-02-20 Electromagnetic Sciences, Inc. Proximity detection system utilizing a movable magnet for saturating an inductor core wherein the rise time of a plurality of such inductors are compared
USRE30012E (en) * 1975-03-17 1979-05-29 Computer Identics Corporation Magnetic object detection device
US4338823A (en) * 1980-08-29 1982-07-13 Aisin Seiki Company, Ltd. Vibration sensor
US4339953A (en) * 1980-08-29 1982-07-20 Aisin Seiki Company, Ltd. Position sensor
US4344331A (en) * 1980-08-29 1982-08-17 Aisin Seiki Company, Limited Fluid flow meter
US4351191A (en) * 1980-08-29 1982-09-28 Aisin Seiki Company, Limited Pressure sensor
US4361045A (en) 1980-08-29 1982-11-30 Aisin Seiki Company, Limited Vibration sensor
US4365513A (en) * 1980-08-29 1982-12-28 Aisin Seiki Company, Limited Deceleration sensor
US4371272A (en) * 1980-08-29 1983-02-01 Aisin Seiki Company, Limited Thermodetector
US4380928A (en) * 1980-08-29 1983-04-26 Aisin Seiki Company, Limited Rotational angle sensor
US4398419A (en) * 1980-08-29 1983-08-16 Aisin Seiki Company, Limited Rotational angle sensor
US4403515A (en) * 1980-08-29 1983-09-13 Aisin Seiki Company, Limited Position sensor
US4488113A (en) * 1982-07-15 1984-12-11 The United States Of America As Represented By The Secretary Of The Navy Magnetic bridge proximity sensor

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662257A (en) * 1969-09-08 1972-05-09 Fujisash Ind Ltd Position detector using a switchable magnetic core
US4006408A (en) * 1972-03-02 1977-02-01 Tdk Electronics Company, Limited Magnetic material detecting device
US4008432A (en) * 1972-03-02 1977-02-15 Tdk Electronics Company, Limited Apparatus for detecting an external magnetic field
USRE30012E (en) * 1975-03-17 1979-05-29 Computer Identics Corporation Magnetic object detection device
US4122392A (en) * 1975-08-20 1978-10-24 Nippon Steel Corporation System of detecting a change in the charge put in a metallurgical furnace or the like
US4140971A (en) * 1977-11-10 1979-02-20 Electromagnetic Sciences, Inc. Proximity detection system utilizing a movable magnet for saturating an inductor core wherein the rise time of a plurality of such inductors are compared
US4344331A (en) * 1980-08-29 1982-08-17 Aisin Seiki Company, Limited Fluid flow meter
US4339953A (en) * 1980-08-29 1982-07-20 Aisin Seiki Company, Ltd. Position sensor
US4338823A (en) * 1980-08-29 1982-07-13 Aisin Seiki Company, Ltd. Vibration sensor
US4351191A (en) * 1980-08-29 1982-09-28 Aisin Seiki Company, Limited Pressure sensor
US4361045A (en) 1980-08-29 1982-11-30 Aisin Seiki Company, Limited Vibration sensor
US4365513A (en) * 1980-08-29 1982-12-28 Aisin Seiki Company, Limited Deceleration sensor
US4371272A (en) * 1980-08-29 1983-02-01 Aisin Seiki Company, Limited Thermodetector
US4380928A (en) * 1980-08-29 1983-04-26 Aisin Seiki Company, Limited Rotational angle sensor
US4398419A (en) * 1980-08-29 1983-08-16 Aisin Seiki Company, Limited Rotational angle sensor
US4403515A (en) * 1980-08-29 1983-09-13 Aisin Seiki Company, Limited Position sensor
US4488113A (en) * 1982-07-15 1984-12-11 The United States Of America As Represented By The Secretary Of The Navy Magnetic bridge proximity sensor

Also Published As

Publication number Publication date
FR1248469A (en) 1960-12-16

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