GB2202677B - Encoder - Google Patents

Encoder

Info

Publication number
GB2202677B
GB2202677B GB8706868A GB8706868A GB2202677B GB 2202677 B GB2202677 B GB 2202677B GB 8706868 A GB8706868 A GB 8706868A GB 8706868 A GB8706868 A GB 8706868A GB 2202677 B GB2202677 B GB 2202677B
Authority
GB
United Kingdom
Prior art keywords
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 - Fee Related
Application number
GB8706868A
Other versions
GB8706868D0 (en
GB2202677A (en
Inventor
Robin Dickinson Beasley
David Steven Goodwin
Frank Alan Humphrey
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.)
British Gas PLC
Original Assignee
British Gas PLC
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 British Gas PLC filed Critical British Gas PLC
Priority to GB8706868A priority Critical patent/GB2202677B/en
Publication of GB8706868D0 publication Critical patent/GB8706868D0/en
Publication of GB2202677A publication Critical patent/GB2202677A/en
Application granted granted Critical
Publication of GB2202677B publication Critical patent/GB2202677B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch
    • H01H19/585—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch provided with printed circuit contacts
    • 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
    • G01D5/25—Selecting one or more conductors or channels from a plurality of conductors or channels, e.g. by closing contacts
    • 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
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
GB8706868A 1987-03-23 1987-03-23 Encoder Expired - Fee Related GB2202677B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8706868A GB2202677B (en) 1987-03-23 1987-03-23 Encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8706868A GB2202677B (en) 1987-03-23 1987-03-23 Encoder

Publications (3)

Publication Number Publication Date
GB8706868D0 GB8706868D0 (en) 1987-04-29
GB2202677A GB2202677A (en) 1988-09-28
GB2202677B true GB2202677B (en) 1990-10-03

Family

ID=10614457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8706868A Expired - Fee Related GB2202677B (en) 1987-03-23 1987-03-23 Encoder

Country Status (1)

Country Link
GB (1) GB2202677B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5739775A (en) * 1993-07-22 1998-04-14 Bourns, Inc. Digital input and control device
US5880683A (en) * 1993-07-22 1999-03-09 Bourns, Inc. Absolute digital position encoder
DE4413098C2 (en) * 1994-04-15 2000-10-26 Lucas Ind Plc Measuring device for linear or angular movements and use of the measuring device and a measuring sensor
DE19709687B4 (en) * 1997-03-11 2005-09-22 Phoenix Contact Gmbh & Co. Kg Electrical or electronic device and circuit board for such a device
CN1239593C (en) * 2000-02-25 2006-02-01 阿尔卑斯电气株式会社 Conductive resin composition and coded switch using said composition

Also Published As

Publication number Publication date
GB8706868D0 (en) 1987-04-29
GB2202677A (en) 1988-09-28

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040323