GB1143508A - Encoder - Google Patents

Encoder

Info

Publication number
GB1143508A
GB1143508A GB49305/67A GB4930567A GB1143508A GB 1143508 A GB1143508 A GB 1143508A GB 49305/67 A GB49305/67 A GB 49305/67A GB 4930567 A GB4930567 A GB 4930567A GB 1143508 A GB1143508 A GB 1143508A
Authority
GB
United Kingdom
Prior art keywords
polepieces
resistor
shaft
flux gap
encoder
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
GB49305/67A
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.)
Dixi SA
Original Assignee
Dixi 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 Dixi SA filed Critical Dixi SA
Publication of GB1143508A publication Critical patent/GB1143508A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01D5/142—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 using Hall-effect devices
    • G01D5/147—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 using Hall-effect devices influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/82—Digital/analogue converters with intermediate conversion to time interval

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

1,143,508. Shaft encoders. DIXI S.A. 31 Oct.,1967 [9 Nov., 1966], No. 49305/67. Heading G4H. A shaft encoder has a number of tracks, one for each digit, each comprising a resistor, the value of which depends on the magnetic field intensity and a magnetic path which varies as the shaft rotates. In the form of Fig. 1, the housing 1 comprises a shell containing a permanent magnet 2 forming a flux gap between rim 3 and flange 4. A ring of non-ferrous metal, e.g. brass, in the flux gap has slots for the resistors 9 and polepieces 10. The shaft 7 is fixed to a rotor 6 carrying toothed polepieces 8 forming tracks. The resistors 9 are connected as potential dividers each with a fixed resistor and the output signal is taken from the junction. The polepieces 10 may taper towards the code teeth. In another form, Fig. 3, a separate magnetic circuit is provided for each track, a permanent magnet 12 having two polepieces 13, 14, between which is placed, at one end, the resistor 9 and, at the other, the toothed disc 17 of the encoder. As the teeth pass into and out of the flux gap the magnetic field on the resistor varies. Alternatively, the gaps may be arranged in series.
GB49305/67A 1966-11-09 1967-10-31 Encoder Expired GB1143508A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1620366A CH448168A (en) 1966-11-09 1966-11-09 Code generator

Publications (1)

Publication Number Publication Date
GB1143508A true GB1143508A (en) 1969-02-26

Family

ID=4415271

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49305/67A Expired GB1143508A (en) 1966-11-09 1967-10-31 Encoder

Country Status (3)

Country Link
CH (1) CH448168A (en)
DE (1) DE1297657B (en)
GB (1) GB1143508A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011128558A2 (en) 2010-04-14 2011-10-20 Moving Magnet Technologies Improved position sensor using a moveable ferromagnetic element
CN107449450A (en) * 2017-09-09 2017-12-08 尔智机器人（上海）有限公司 A kind of magnetism encoder and joint

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS597213A (en) * 1982-07-05 1984-01-14 Inoue Japax Res Inc Encoder

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011128558A2 (en) 2010-04-14 2011-10-20 Moving Magnet Technologies Improved position sensor using a moveable ferromagnetic element
FR2959011A1 (en) * 2010-04-14 2011-10-21 Moving Magnet Tech Mmt IMPROVED POSITION SENSOR USING MOBILE FERROMAGNETIC ELEMENT
WO2011128558A3 (en) * 2010-04-14 2013-03-14 Moving Magnet Technologies Position sensor using a moveable ferromagnetic element
US8963541B2 (en) 2010-04-14 2015-02-24 Moving Magnet Technologies (Mmt) Position sensor using a moveable ferromagnetic element
CN107449450A (en) * 2017-09-09 2017-12-08 尔智机器人（上海）有限公司 A kind of magnetism encoder and joint
CN107449450B (en) * 2017-09-09 2024-04-23 尔智机器人(珠海)有限公司 Magneto-electric encoder and joint

Also Published As

Publication number Publication date
DE1297657B (en) 1969-06-19
CH448168A (en) 1967-12-15

Similar Documents

Publication Publication Date Title
SU604508A3 (en) Electromechanical pulse transmitter
GB1482797A (en) Pulse generators
US3562741A (en) Electromagnetic pulse generating system
GB1163039A (en) Apparatus for Detecting the Speed of Wheel Rotation.
GB1248294A (en) Electrical rotational speed sensing device
ES464704A1 (en) Level amplitude output rotary speed transducer
GB1518733A (en) Digital pulse generating system and digital reluctance tachometer
GB1485524A (en) Electric motors
GB1440520A (en) Synchronous electric motor
GB1215918A (en) Pulse generators
GB1284324A (en) A vehicle-wheel speed-sensing arrangement
GB1201310A (en) Electrical pulse transmitting apparatus
GB1143508A (en) Encoder
GB1238088A (en)
GB1492264A (en) Magnetic speed sensor
GB1302507A (en)
ES372698A1 (en) Signal readout method and apparatus
US3568180A (en) Encoder
GB1298100A (en) Improvements in or relating to tachogenerators
GB1180588A (en) Apparatus for Measuring Pulses Produced in Rotary Electric Machines
GB1296614A (en)
JPS55101863A (en) Speed detector
JPS5338311A (en) Reading system
GB1131538A (en) An electrical circuit for use in the measurement of acceleration
GB1015312A (en) Magnetic encoder