JPS5567608A - Measurement unit for rotary angle - Google Patents

Measurement unit for rotary angle

Info

Publication number
JPS5567608A
JPS5567608A JP14120678A JP14120678A JPS5567608A JP S5567608 A JPS5567608 A JP S5567608A JP 14120678 A JP14120678 A JP 14120678A JP 14120678 A JP14120678 A JP 14120678A JP S5567608 A JPS5567608 A JP S5567608A
Authority
JP
Japan
Prior art keywords
eccentricity
counters
averaged
conversion
play
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
JP14120678A
Other languages
Japanese (ja)
Inventor
Toshifumi Imai
Tatsuro Hatano
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 JP14120678A priority Critical patent/JPS5567608A/en
Publication of JPS5567608A publication Critical patent/JPS5567608A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

PURPOSE: To compensate the phase error of signal caused by the play and eccentricity of shaft, with the additional average of the signals from the two detectors almost provided at the symmetrical position to the rotary disc.
CONSTITUTION: After the conversion signal of the photo electric conversion elements 5, 5' is inputted to the Schmitt trigger circuits 60, 60' respectively and made to rectangular shape, it is pulsed at the pulse generation circuits 70 and 70' and counted at the counters 80, 80'. The average circuit 10 averages the value of the counters 80, 80' and displays it on the display circuit 20 with angular conversion. Accordingly, even with the shaft play and eccentricity, the count value of the counter is averaged and cancelled even 11 the phase shift such as reverse direction is included. Further, since the photo electric conversion signals is averaged with independent digital processing, the variation in the amplitude of the measurement signal can be avoided.
COPYRIGHT: (C)1980,JPO&Japio
JP14120678A 1978-11-17 1978-11-17 Measurement unit for rotary angle Pending JPS5567608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14120678A JPS5567608A (en) 1978-11-17 1978-11-17 Measurement unit for rotary angle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14120678A JPS5567608A (en) 1978-11-17 1978-11-17 Measurement unit for rotary angle

Publications (1)

Publication Number Publication Date
JPS5567608A true JPS5567608A (en) 1980-05-21

Family

ID=15286602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14120678A Pending JPS5567608A (en) 1978-11-17 1978-11-17 Measurement unit for rotary angle

Country Status (1)

Country Link
JP (1) JPS5567608A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57116809U (en) * 1981-01-13 1982-07-20
US4547667A (en) * 1981-04-13 1985-10-15 Tokyo Kogaku Kikai Kabushiki Kaisha Displacement measuring device utilizing an incremental code
JPS6165111A (en) * 1984-08-28 1986-04-03 シー　イー　ヨハーンソーン　アクチエ　ボラゲツト Method of improving accuracy of some length measuring systemby calibrating said length measuring system to more precise reference system
JPS6443718A (en) * 1987-08-12 1989-02-16 Omron Tateisi Electronics Co Rotary encoder
US5301434A (en) * 1991-12-24 1994-04-12 Nikon Corporation Rotation angle measuring apparatus
JP2000241157A (en) * 1999-02-20 2000-09-08 Dr Johannes Heidenhain Gmbh Angle measuring system
JP2002303538A (en) * 2001-04-03 2002-10-18 Topcon Corp Encoder reading device
CN106170679A (en) * 2015-09-02 2016-11-30 深圳大学 A kind of phase error compensation method and device
JP2017187490A (en) * 2016-04-05 2017-10-12 ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツングＤｒ． Ｊｏｈａｎｎｅｓ Ｈｅｉｄｅｎｈａｉｎ Ｇｅｓｅｌｌｓｃｈａｆｔ Ｍｉｔ Ｂｅｓｃｈｒａｎｋｔｅｒ Ｈａｆｔｕｎｇ Device and method for measuring angle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4217002Y1 (en) * 1964-09-03 1967-09-30
JPS4986052A (en) * 1972-12-05 1974-08-17

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4217002Y1 (en) * 1964-09-03 1967-09-30
JPS4986052A (en) * 1972-12-05 1974-08-17

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57116809U (en) * 1981-01-13 1982-07-20
US4547667A (en) * 1981-04-13 1985-10-15 Tokyo Kogaku Kikai Kabushiki Kaisha Displacement measuring device utilizing an incremental code
JPS6165111A (en) * 1984-08-28 1986-04-03 シー　イー　ヨハーンソーン　アクチエ　ボラゲツト Method of improving accuracy of some length measuring systemby calibrating said length measuring system to more precise reference system
JPH0564721B2 (en) * 1984-08-28 1993-09-16 Johansson Ab C E
JPS6443718A (en) * 1987-08-12 1989-02-16 Omron Tateisi Electronics Co Rotary encoder
US5301434A (en) * 1991-12-24 1994-04-12 Nikon Corporation Rotation angle measuring apparatus
JP2000241157A (en) * 1999-02-20 2000-09-08 Dr Johannes Heidenhain Gmbh Angle measuring system
JP4580054B2 (en) * 1999-02-20 2010-11-10 ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Angle measuring system
DE19907326B4 (en) * 1999-02-20 2013-04-04 Dr. Johannes Heidenhain Gmbh angle measurement
JP2002303538A (en) * 2001-04-03 2002-10-18 Topcon Corp Encoder reading device
CN106170679A (en) * 2015-09-02 2016-11-30 深圳大学 A kind of phase error compensation method and device
CN106170679B (en) * 2015-09-02 2019-06-25 深圳大学 A kind of phase error compensation method and device
JP2017187490A (en) * 2016-04-05 2017-10-12 ドクトル・ヨハネス・ハイデンハイン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツングＤｒ． Ｊｏｈａｎｎｅｓ Ｈｅｉｄｅｎｈａｉｎ Ｇｅｓｅｌｌｓｃｈａｆｔ Ｍｉｔ Ｂｅｓｃｈｒａｎｋｔｅｒ Ｈａｆｔｕｎｇ Device and method for measuring angle

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