JPS56118611A - Highly accurate split reader for signal - Google Patents

Highly accurate split reader for signal

Info

Publication number
JPS56118611A
JPS56118611A JP2158680A JP2158680A JPS56118611A JP S56118611 A JPS56118611 A JP S56118611A JP 2158680 A JP2158680 A JP 2158680A JP 2158680 A JP2158680 A JP 2158680A JP S56118611 A JPS56118611 A JP S56118611A
Authority
JP
Japan
Prior art keywords
ratio
circuits
highly accurate
sine
signals
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.)
Pending
Application number
JP2158680A
Other languages
English (en)
Inventor
Akio Takahama
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.)
Nikon Corp
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial Co Ltd
Nippon Kogaku KK
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 Nippon Chemical Industrial Co Ltd, Nippon Kogaku KK filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP2158680A priority Critical patent/JPS56118611A/ja
Priority to US06/160,534 priority patent/US4346447A/en
Publication of JPS56118611A publication Critical patent/JPS56118611A/ja
Pending 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
    • H03M1/22—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
JP2158680A 1979-12-28 1980-02-25 Highly accurate split reader for signal Pending JPS56118611A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2158680A JPS56118611A (en) 1980-02-25 1980-02-25 Highly accurate split reader for signal
US06/160,534 US4346447A (en) 1979-12-28 1980-06-18 Divisional reading device for sine signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2158680A JPS56118611A (en) 1980-02-25 1980-02-25 Highly accurate split reader for signal

Publications (1)

Publication Number Publication Date
JPS56118611A true JPS56118611A (en) 1981-09-17

Family

ID=12059134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2158680A Pending JPS56118611A (en) 1979-12-28 1980-02-25 Highly accurate split reader for signal

Country Status (1)

Country Link
JP (1) JPS56118611A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005101A1 (en) * 1986-02-14 1987-08-27 Fanuc Ltd Pulse distribution type position detector
JPS63122915A (ja) * 1986-11-12 1988-05-26 Nikon Corp アブソリユ−トエンコ−ダ
JPH01131415A (ja) * 1987-07-29 1989-05-24 Yokogawa Electric Corp 光学式変位測定装置
JP2008107235A (ja) * 2006-10-26 2008-05-08 Denso Corp 回転角度検出装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5021669A (ja) * 1973-05-24 1975-03-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5021669A (ja) * 1973-05-24 1975-03-07

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005101A1 (en) * 1986-02-14 1987-08-27 Fanuc Ltd Pulse distribution type position detector
JPS63122915A (ja) * 1986-11-12 1988-05-26 Nikon Corp アブソリユ−トエンコ−ダ
JPH01131415A (ja) * 1987-07-29 1989-05-24 Yokogawa Electric Corp 光学式変位測定装置
JP2008107235A (ja) * 2006-10-26 2008-05-08 Denso Corp 回転角度検出装置

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