GB1352974A - Movement transducers partucularly for machine tool indicators - Google Patents

Movement transducers partucularly for machine tool indicators

Info

Publication number
GB1352974A
GB1352974A GB1352974DA GB1352974A GB 1352974 A GB1352974 A GB 1352974A GB 1352974D A GB1352974D A GB 1352974DA GB 1352974 A GB1352974 A GB 1352974A
Authority
GB
United Kingdom
Prior art keywords
disc
conductor
pick
transducer
cycles
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
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.)
English Numbering Machines Ltd
Original Assignee
English Numbering Machines Ltd
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 English Numbering Machines Ltd filed Critical English Numbering Machines Ltd
Publication of GB1352974A publication Critical patent/GB1352974A/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
    • G01P3/484—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 contact-making switches
    • 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
    • G01D5/204—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 mutual induction between two or more coils
    • G01D5/2073—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 mutual induction between two or more coils by movement of a single coil with respect to two or more coils
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

1352974 Rotary encoder ENGLISH NUMBERING MACHINES Ltd 20 Dec 1972 [14 Jan 1972] 1875/72 Heading G4H [Also in Division G1] A transducer for measuring angular displacement comprises a flexible insulating disc 12 carrying a conductor 14 formed with a regular square wave pattern near the outer edge of the disc and a pick-up element 20 consisting of a flexible insulating sheet 21 carrying two conductor loops 23, 24 each being half the width of the main square wave pattern 14 and spaced apart by an integral number of pitches and a half pitch. Conductor 14 is connected to a coil 16 mounted on a shaft 10 together with disc 12: pick-up 20 is fixed to a stationary member 25. Coil 16 and conductor 14 are energized with AC via stationary coil 18, and the out-of-phase signals induced in the loops 23, 24 are compared to determine the direction of rotation. The angular displacement is obtained by counting the number of cycles induced in either pick-up loop. The conductor patterns may be produced by printing. The outer edge of disc 12 is shaped to press against the pick-up plate 21. The shaft 10 may be a lead screw and the transducer duplicated, one disc 12 having 254 cycles of conductor 14, for measuring in centimetres, and the other disc having 100 cycles, for measuring in inches. The transducer may be opened out to form a linear displacement transducer.
GB1352974D 1972-01-14 1972-01-14 Movement transducers partucularly for machine tool indicators Expired GB1352974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB187572 1972-01-14

Publications (1)

Publication Number Publication Date
GB1352974A true GB1352974A (en) 1974-05-15

Family

ID=9729568

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1352974D Expired GB1352974A (en) 1972-01-14 1972-01-14 Movement transducers partucularly for machine tool indicators

Country Status (4)

Country Link
JP (1) JPS4886552A (en)
BR (1) BR7300280D0 (en)
DE (1) DE2300784A1 (en)
GB (1) GB1352974A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185828B1 (en) * 1997-12-06 2001-02-13 Armatic Gesellschaft Fuer Automatische Armaturen Mbh Position signal transmitter for a servo drive

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2430168C3 (en) * 1974-06-24 1981-04-09 Alfred Teves Gmbh, 6000 Frankfurt Inductive transmitter
JPS5819967B2 (en) * 1979-05-02 1983-04-21 武藤工業株式会社 A-D conversion device for free parallel rulers, etc.
DE3500121A1 (en) * 1985-01-04 1986-07-10 Atlas Fahrzeugtechnik GmbH, 5980 Werdohl Arrangement for contactlessly measuring the valve movement
EP0388584B1 (en) * 1989-01-17 1993-10-27 Gec Alsthom Sa Device for determining the position of a steel shaft comprising an electrically discontinuous band and procedure for manufacturing said band

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185828B1 (en) * 1997-12-06 2001-02-13 Armatic Gesellschaft Fuer Automatische Armaturen Mbh Position signal transmitter for a servo drive

Also Published As

Publication number Publication date
JPS4886552A (en) 1973-11-15
DE2300784A1 (en) 1973-07-19
BR7300280D0 (en) 1973-10-09

Similar Documents

Publication Publication Date Title
NL7700565A (en) SHEET SCANNING MACHINE IN A ROTARY PRINTING MACHINE.
GB1390546A (en) Position encoder for feedback control system
BE820323A (en) MAGNETORESISTIVE READING TRANSDUCER WITH INDUCED POLARIZATION
IT8785625A0 (en) COMPARED TO THE PLATE ITSELF. SANDING MACHINE WITH ROTARY PLATE WITH MULTIPLE NON-ROTATING HEADS
IT957961B (en) IMPROVEMENT IN ROTARY SHEET PRINTING MACHINES
GB1352974A (en) Movement transducers partucularly for machine tool indicators
SE387312B (en) FORGRIPARVENVANGANGLEGE IN A ROTATION PRINTING MACHINE
SE404914B (en) SHEET LAYER FOR A SHEET PRINTING MACHINE
DE3583221D1 (en) ARRANGEMENT OF A POSITION SENSOR ON A MACHINE.
BE806396A (en) AERODYNAMIC PRESSURE WAVE MACHINE
CA1035618A (en) Web-forming section in a tissue paper machine
GB1545734A (en) Speed sensor mounting in a rotary machine
FR2331443A1 (en) ROTARY SHEET PRINTING MACHINE
YU34374B (en) Grazing strip for a photogravure rotary machine
BE818909A (en) ROTARY TRANSDUCER MAGNETIC BAND UNIT
BE854364A (en) PROCESS FOR PREPARING POLYMERS WITH OXYMETHYLENE PATTERNS
IT998775B (en) MULTI-POINT WRITER WITH ROTATING PLATE SELECTOR
IE41362L (en) Sewing machine
IT1069099B (en) MULTI-METAL PRINTING PLATE
GB1369318A (en) Perfecting unit for a rotary web printing machine
GB1459585A (en)
BE777839A (en) COMPENSATOR ROLLER PRINTING MACHINE
IT989492B (en) MORE SPEED ROTARY ELECTRIC MACHINE
DK136782B (en) Sewing machine presser foot with a measuring ruler.
CH547700A (en) ROTARY PRINTING MACHINE WITH A DEVICE FOR ADJUSTING THE SIDE AND CIRCUMFERENCE REGISTER OF A PLATE CYLINDER.

Legal Events

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