GB1132130A - Apparatus for measuring linear displacements - Google Patents

Apparatus for measuring linear displacements

Info

Publication number
GB1132130A
GB1132130A GB43169/66A GB4316966A GB1132130A GB 1132130 A GB1132130 A GB 1132130A GB 43169/66 A GB43169/66 A GB 43169/66A GB 4316966 A GB4316966 A GB 4316966A GB 1132130 A GB1132130 A GB 1132130A
Authority
GB
United Kingdom
Prior art keywords
wheel
tape
encoder
lamps
counter
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
GB43169/66A
Inventor
Harold Ernest Barnes
Alfred Frederick Bowman
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.)
Rotheroe & Mitchell Ltd
Original Assignee
Rotheroe & Mitchell 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 Rotheroe & Mitchell Ltd filed Critical Rotheroe & Mitchell Ltd
Priority to GB43169/66A priority Critical patent/GB1132130A/en
Publication of GB1132130A publication Critical patent/GB1132130A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1,132,130. Measuring linear movement. ROTHEROE & MITCHELL Ltd. 20 July, 1967 [27 Sept., 1966], No. 43169/66. Heading G4H. The linear displacement of a member is measured by a wheel 1 connected to the member through a tape or strip 4, the wheel having an optical encoder 2 on its shaft generating pulses which are counted to indicate the displacement. In the form shown, the tape is attached to the moving member at one end, and tension is applied to the other. The tape is held against the wheel by a pressure roller 7. In another form the tape is endless and runs over rollers surrounding the wheel. The tape touches the wheel at one point and is gripped between it and the moving member. The pulses from the encoder pass to a counter which counts up or down according to the direction of movement. The value in the counter is indicated on a bank of lamps. There may be a number of moving members, each with an encoder as described. One of them is a reference member, the positions of the others being compared with the position of the reference member to light " high," " level " and " low " lamps.
GB43169/66A 1966-09-27 1966-09-27 Apparatus for measuring linear displacements Expired GB1132130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB43169/66A GB1132130A (en) 1966-09-27 1966-09-27 Apparatus for measuring linear displacements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43169/66A GB1132130A (en) 1966-09-27 1966-09-27 Apparatus for measuring linear displacements

Publications (1)

Publication Number Publication Date
GB1132130A true GB1132130A (en) 1968-10-30

Family

ID=10427607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43169/66A Expired GB1132130A (en) 1966-09-27 1966-09-27 Apparatus for measuring linear displacements

Country Status (1)

Country Link
GB (1) GB1132130A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2198118A1 (en) * 1972-09-05 1974-03-29 Bendix Corp
GB2152209A (en) * 1983-12-23 1985-07-31 Practical Technology Limited Apparatus for compilation of measurement data from scaled drawings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2198118A1 (en) * 1972-09-05 1974-03-29 Bendix Corp
GB2152209A (en) * 1983-12-23 1985-07-31 Practical Technology Limited Apparatus for compilation of measurement data from scaled drawings

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