JPS57206822A - Detector for position and speed - Google Patents

Detector for position and speed

Info

Publication number
JPS57206822A
JPS57206822A JP9180581A JP9180581A JPS57206822A JP S57206822 A JPS57206822 A JP S57206822A JP 9180581 A JP9180581 A JP 9180581A JP 9180581 A JP9180581 A JP 9180581A JP S57206822 A JPS57206822 A JP S57206822A
Authority
JP
Japan
Prior art keywords
circuit
signal
comparing
position detecting
level
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
JP9180581A
Other languages
Japanese (ja)
Inventor
Masao Tsunekawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9180581A priority Critical patent/JPS57206822A/en
Publication of JPS57206822A publication Critical patent/JPS57206822A/en
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
    • G01D5/244—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 characteristics of pulses or pulse trains; generating pulses or pulse trains

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE:To improve precision of position and speed information, by a method wherein a period of a position detecting signal is subdivided, and comparison is made on a level corresponding to each moving position. CONSTITUTION:A position detecting signal A is compared with a plural number of amplitude comparing levels of an amplitude comparing level set circuit 3 by a comparing circuit 4. The amplitude comparing level of the amplitude comparing level set circuit 3 produces a level corresponding to their respective positions into which the duration of one period of the position detecting signal is divided. A position detecting signal B is a signal which is different in phase by 1/4 period from the position detecting signal A, and the signal B is inputted to a comparator 8 of a moving direction detecting circuit 6 to compare it with a reference level. A tachopulse B from the comparator 8 and a change code from a comparing signal change detecting circuit 5 are inputted to an exclusive circuit 7 to output a moving direction signal SIGN. The signals are inputted to an up- down counting circuit UDC and a D-A converter DA to output position information. Finally, speed information is outputted from a frequency-voltage converting circuit FVC.
JP9180581A 1981-06-15 1981-06-15 Detector for position and speed Pending JPS57206822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9180581A JPS57206822A (en) 1981-06-15 1981-06-15 Detector for position and speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9180581A JPS57206822A (en) 1981-06-15 1981-06-15 Detector for position and speed

Publications (1)

Publication Number Publication Date
JPS57206822A true JPS57206822A (en) 1982-12-18

Family

ID=14036832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9180581A Pending JPS57206822A (en) 1981-06-15 1981-06-15 Detector for position and speed

Country Status (1)

Country Link
JP (1) JPS57206822A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS628615A (en) * 1985-07-02 1987-01-16 ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Method and apparatus for synchronizing square wave signal
JPH0262913A (en) * 1988-08-30 1990-03-02 Sony Corp Rotation detecting device
JP2007178170A (en) * 2005-12-27 2007-07-12 Olympus Corp Encoder interpolation apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830957A (en) * 1971-08-23 1973-04-23
JPS5527962A (en) * 1978-08-19 1980-02-28 Fujitsu Ltd Rotary encoder
JPS5536741A (en) * 1978-09-08 1980-03-14 Hitachi Ltd Sensing device for rotating direction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830957A (en) * 1971-08-23 1973-04-23
JPS5527962A (en) * 1978-08-19 1980-02-28 Fujitsu Ltd Rotary encoder
JPS5536741A (en) * 1978-09-08 1980-03-14 Hitachi Ltd Sensing device for rotating direction

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS628615A (en) * 1985-07-02 1987-01-16 ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Method and apparatus for synchronizing square wave signal
JPH058967B2 (en) * 1985-07-02 1993-02-03 Dokutoru Yohanesu Haidenhain Gmbh
JPH0262913A (en) * 1988-08-30 1990-03-02 Sony Corp Rotation detecting device
JP2007178170A (en) * 2005-12-27 2007-07-12 Olympus Corp Encoder interpolation apparatus
JP4746427B2 (en) * 2005-12-27 2011-08-10 オリンパス株式会社 Encoder interpolation device

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