GB2195762A - Interpolator - Google Patents

Interpolator Download PDF

Info

Publication number
GB2195762A
GB2195762A GB08623752A GB8623752A GB2195762A GB 2195762 A GB2195762 A GB 2195762A GB 08623752 A GB08623752 A GB 08623752A GB 8623752 A GB8623752 A GB 8623752A GB 2195762 A GB2195762 A GB 2195762A
Authority
GB
United Kingdom
Prior art keywords
count
interpolator
signals
changing
input signal
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.)
Withdrawn
Application number
GB08623752A
Other languages
English (en)
Other versions
GB8623752D0 (en
Inventor
Peter Dean Onyon
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.)
Rank Taylor Hobson Ltd
Original Assignee
Rank Taylor Hobson 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 Rank Taylor Hobson Ltd filed Critical Rank Taylor Hobson Ltd
Priority to GB08623752A priority Critical patent/GB2195762A/en
Publication of GB8623752D0 publication Critical patent/GB8623752D0/en
Priority to DK482587A priority patent/DK482587A/da
Priority to IN675/MAS/87A priority patent/IN170195B/en
Priority to US07/100,020 priority patent/US4823000A/en
Priority to EP87308522A priority patent/EP0262881B1/en
Priority to DE87308522T priority patent/DE3788329T2/de
Priority to DD87307382A priority patent/DD269269A5/de
Priority to JP62249085A priority patent/JPS6391513A/ja
Priority to CN87106776A priority patent/CN87106776A/zh
Publication of GB2195762A publication Critical patent/GB2195762A/en
Priority to IN308MA1991 priority patent/IN173229B/en
Withdrawn legal-status Critical Current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
    • G01D5/12—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
    • G01D5/243—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 phase or frequency of AC
    • 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
    • H03M1/20—Increasing resolution using an n bit system to obtain n + m bits
    • H03M1/202—Increasing resolution using an n bit system to obtain n + m bits by interpolation
    • H03M1/206—Increasing resolution using an n bit system to obtain n + m bits by interpolation using a logic interpolation circuit
    • 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
    • H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
    • H03M1/303—Circuits or methods for processing the quadrature signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Control Of Position Or Direction (AREA)
GB08623752A 1986-10-03 1986-10-03 Interpolator Withdrawn GB2195762A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB08623752A GB2195762A (en) 1986-10-03 1986-10-03 Interpolator
DK482587A DK482587A (da) 1986-10-03 1987-09-15 Apparat til at indikere vaerdien af en variabel
IN675/MAS/87A IN170195B (en:Method) 1986-10-03 1987-09-17
US07/100,020 US4823000A (en) 1986-10-03 1987-09-23 Apparatus for indicating the value of a variable
DE87308522T DE3788329T2 (de) 1986-10-03 1987-09-25 Gerät zum Anzeigen des Wertes einer Variablen.
EP87308522A EP0262881B1 (en) 1986-10-03 1987-09-25 Apparatus for indicating the value of a variable
DD87307382A DD269269A5 (de) 1986-10-03 1987-09-30 Geraet fuer die anzeige des wertes einer veraenderlichen groesse
JP62249085A JPS6391513A (ja) 1986-10-03 1987-09-30 変数の値を示すための装置および位置エンコーダ
CN87106776A CN87106776A (zh) 1986-10-03 1987-10-02 用以指示变量值的设备
IN308MA1991 IN173229B (en:Method) 1986-10-03 1991-04-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08623752A GB2195762A (en) 1986-10-03 1986-10-03 Interpolator

Publications (2)

Publication Number Publication Date
GB8623752D0 GB8623752D0 (en) 1986-11-05
GB2195762A true GB2195762A (en) 1988-04-13

Family

ID=10605200

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08623752A Withdrawn GB2195762A (en) 1986-10-03 1986-10-03 Interpolator

Country Status (9)

Country Link
US (1) US4823000A (en:Method)
EP (1) EP0262881B1 (en:Method)
JP (1) JPS6391513A (en:Method)
CN (1) CN87106776A (en:Method)
DD (1) DD269269A5 (en:Method)
DE (1) DE3788329T2 (en:Method)
DK (1) DK482587A (en:Method)
GB (1) GB2195762A (en:Method)
IN (1) IN170195B (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223575A (en) * 1988-09-02 1990-04-11 Alcatel Business Systems Optical position encoder

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8921338D0 (en) * 1989-09-21 1989-11-08 Smiths Industries Plc Optical encoders
GB8914417D0 (en) * 1989-06-23 1989-08-09 Rank Taylor Hobson Ltd Interpolator
US5107107A (en) * 1990-03-30 1992-04-21 The United States Of America As Represented By The Administarator Of The National Aeronautics And Space Administration Laser optical disk position encoder with active heads
WO1992006539A1 (en) * 1990-10-02 1992-04-16 Spetsialnoe Konstruktorskoe Bjuro Radioelektronnoi Apparatury Instituta Radiofiziki I Elektroniki Akademii Nauk Armyanskoi Ssr Method and device for conversion of movements of an object into code
US5949695A (en) * 1997-01-10 1999-09-07 Harris Corporation Interpolator using a plurality of polynomial equations and associated methods
US10408643B2 (en) * 2016-08-18 2019-09-10 Texas Instruments Incorporated Methods and apparatus to increase resolver-to-digital converter accuracy

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1161561A (en) * 1965-08-06 1969-08-13 Nat Res Dev Improvements in or relating to Positional Displacement Transducer Arrangements
EP0024969A1 (en) * 1979-08-31 1981-03-11 The Bendix Corporation Measuring machine and method of producing displacement-indicative signals in such a machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410976A (en) * 1965-06-09 1968-11-12 Itek Corp Shaft angle encoder with phase detection
US3798557A (en) * 1972-03-31 1974-03-19 Perkin Elmer Corp Interpolation of sinusoidal signals
JPS5610565A (en) * 1979-07-04 1981-02-03 Ricoh Co Ltd Purification of azo pigment
US4346447A (en) * 1979-12-28 1982-08-24 Nippon Kogaku K.K. Divisional reading device for sine signals
US4445110A (en) * 1980-07-28 1984-04-24 Itek Corporation Absolute optical encoder system
DE3412557A1 (de) * 1984-04-04 1985-10-24 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Laengenmesseinrichtung
JPS6197520A (ja) * 1984-10-19 1986-05-16 Mitsutoyo Mfg Co Ltd 変位検出装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1161561A (en) * 1965-08-06 1969-08-13 Nat Res Dev Improvements in or relating to Positional Displacement Transducer Arrangements
EP0024969A1 (en) * 1979-08-31 1981-03-11 The Bendix Corporation Measuring machine and method of producing displacement-indicative signals in such a machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223575A (en) * 1988-09-02 1990-04-11 Alcatel Business Systems Optical position encoder
GB2223575B (en) * 1988-09-02 1992-11-04 Alcatel Business Systems Drive mechanism with optical encoder

Also Published As

Publication number Publication date
DE3788329D1 (de) 1994-01-13
EP0262881B1 (en) 1993-12-01
DE3788329T2 (de) 1994-03-17
EP0262881A2 (en) 1988-04-06
EP0262881A3 (en) 1989-12-27
IN170195B (en:Method) 1992-02-22
US4823000A (en) 1989-04-18
GB8623752D0 (en) 1986-11-05
DK482587A (da) 1988-04-04
JPS6391513A (ja) 1988-04-22
DD269269A5 (de) 1989-06-21
CN87106776A (zh) 1988-04-13
DK482587D0 (da) 1987-09-15

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)