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GB2319601B - Position control device - Google Patents

Position control device

Info

Publication number
GB2319601B
GB2319601B GB9617125A GB9617125A GB2319601B GB 2319601 B GB2319601 B GB 2319601B GB 9617125 A GB9617125 A GB 9617125A GB 9617125 A GB9617125 A GB 9617125A GB 2319601 B GB2319601 B GB 2319601B
Authority
GB
United Kingdom
Prior art keywords
control device
position control
control
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 - Fee Related
Application number
GB9617125A
Other versions
GB2319601A (en
GB9617125D0 (en
Inventor
Christopher Fenwick
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.)
Zero 88 Lighting Ltd
Original Assignee
Zero 88 Lighting 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 Zero 88 Lighting Ltd filed Critical Zero 88 Lighting Ltd
Priority to GB9617125A priority Critical patent/GB2319601B/en
Publication of GB9617125D0 publication Critical patent/GB9617125D0/en
Publication of GB2319601A publication Critical patent/GB2319601A/en
Application granted granted Critical
Publication of GB2319601B publication Critical patent/GB2319601B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01D5/347—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 using displacement encoding scales
    • G01D5/3473—Circular or rotary encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
GB9617125A 1996-08-21 1996-08-21 Position control device Expired - Fee Related GB2319601B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9617125A GB2319601B (en) 1996-08-21 1996-08-21 Position control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9617125A GB2319601B (en) 1996-08-21 1996-08-21 Position control device

Publications (3)

Publication Number Publication Date
GB9617125D0 GB9617125D0 (en) 1996-09-25
GB2319601A GB2319601A (en) 1998-05-27
GB2319601B true GB2319601B (en) 2000-05-10

Family

ID=10798509

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9617125A Expired - Fee Related GB2319601B (en) 1996-08-21 1996-08-21 Position control device

Country Status (1)

Country Link
GB (1) GB2319601B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179918A1 (en) * 1984-04-14 1986-05-07 Fanuc Ltd. Optical rotary encoder
US4931636A (en) * 1988-08-26 1990-06-05 The Boeing Company Two wavelength optical sensor and sensing system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0179918A1 (en) * 1984-04-14 1986-05-07 Fanuc Ltd. Optical rotary encoder
US4931636A (en) * 1988-08-26 1990-06-05 The Boeing Company Two wavelength optical sensor and sensing system

Also Published As

Publication number Publication date
GB2319601A (en) 1998-05-27
GB9617125D0 (en) 1996-09-25

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Legal Events

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

Effective date: 20150821