GB2054135B - Photo-electric displacement transducer - Google Patents

Photo-electric displacement transducer

Info

Publication number
GB2054135B
GB2054135B GB7925195A GB7925195A GB2054135B GB 2054135 B GB2054135 B GB 2054135B GB 7925195 A GB7925195 A GB 7925195A GB 7925195 A GB7925195 A GB 7925195A GB 2054135 B GB2054135 B GB 2054135B
Authority
GB
United Kingdom
Prior art keywords
photo
displacement transducer
electric displacement
electric
transducer
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
GB7925195A
Other versions
GB2054135A (en
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.)
Unisys Corp
Original Assignee
Burroughs Corp
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 Burroughs Corp filed Critical Burroughs Corp
Priority to GB7925195A priority Critical patent/GB2054135B/en
Publication of GB2054135A publication Critical patent/GB2054135A/en
Application granted granted Critical
Publication of GB2054135B publication Critical patent/GB2054135B/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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/36—Forming the light into pulses
    • 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
    • G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners
    • G11B7/08588—Sled-type positioners with position sensing by means of an auxiliary system using an external scale

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB7925195A 1979-07-19 1979-07-19 Photo-electric displacement transducer Expired GB2054135B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7925195A GB2054135B (en) 1979-07-19 1979-07-19 Photo-electric displacement transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7925195A GB2054135B (en) 1979-07-19 1979-07-19 Photo-electric displacement transducer

Publications (2)

Publication Number Publication Date
GB2054135A GB2054135A (en) 1981-02-11
GB2054135B true GB2054135B (en) 1984-03-14

Family

ID=10506611

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7925195A Expired GB2054135B (en) 1979-07-19 1979-07-19 Photo-electric displacement transducer

Country Status (1)

Country Link
GB (1) GB2054135B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293188A (en) * 1980-03-24 1981-10-06 Sperry Corporation Fiber optic small displacement sensor
GB2112960B (en) * 1981-12-30 1985-09-18 Burroughs Corp Improvements in and relating to positioning servomechanisms
EP0104941A3 (en) * 1982-09-27 1985-11-06 Quantum Corporation Data storage devices
US4590527A (en) * 1983-11-14 1986-05-20 Burroughs Corporation Positioning servomechanisms
FR2566896B1 (en) * 1984-07-02 1988-11-18 Aerospatiale METHOD AND DEVICE FOR DETERMINING THE POSITION OF A MOBILE MEMBER USING ELEMENTS WITH VARIABLE OPTICAL PROPERTIES
US4598586A (en) * 1984-08-31 1986-07-08 Northrop Corporation Compensation of gain temperature coefficient in an optical pick-off for an accelerometer
IT1185455B (en) * 1985-10-16 1987-11-12 Pirelli Cavi Spa OPTICAL POSITION SENSOR
FR2604018A1 (en) * 1986-09-15 1988-03-18 Signal Vision Sa Method and device for luminous display of the movement of a movable object
JPS6468814A (en) * 1987-09-10 1989-03-14 Canon Kk Method and device for position control of moving object
JPH01257213A (en) * 1988-04-07 1989-10-13 Canon Inc Position detector
JP3170902B2 (en) * 1992-09-30 2001-05-28 キヤノン株式会社 Signal processing method and encoder using the same
US5442166A (en) * 1993-11-15 1995-08-15 Hughes Aircraft Company Linear absolute position sensor
DE10339366A1 (en) 2003-08-27 2005-03-24 Dr. Johannes Heidenhain Gmbh Method and device for controlling a light source of a position measuring device
CN103148779B (en) * 2013-01-30 2016-01-13 中国科学院长春光学精密机械与物理研究所 The adjusting gear of light source in position measurement apparatus

Also Published As

Publication number Publication date
GB2054135A (en) 1981-02-11

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940719