JPS6443718A - Rotary encoder - Google Patents
Rotary encoderInfo
- Publication number
- JPS6443718A JPS6443718A JP19991387A JP19991387A JPS6443718A JP S6443718 A JPS6443718 A JP S6443718A JP 19991387 A JP19991387 A JP 19991387A JP 19991387 A JP19991387 A JP 19991387A JP S6443718 A JPS6443718 A JP S6443718A
- Authority
- JP
- Japan
- Prior art keywords
- heads
- point symmetry
- eccentricity
- rotary encoder
- outputs
- 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
Links
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Optical Transform (AREA)
- Analogue/Digital Conversion (AREA)
Abstract
PURPOSE:To detect a correct angle position even in case of slight eccentricity by providing two code detection heads at positions of point symmetry about a rotary shaft. CONSTITUTION:The code detection heads 3A and 3B are arranged at the position of point symmetry about the center of rotation of the rotary disk 1 and read a Gray code optically. An arithmetic circuit 25 performs arithmetic for erasing an error based upon the eccentricity by using the outputs signals of the heads 3A and 3B and outputs the result as a detection angle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19991387A JPS6443718A (en) | 1987-08-12 | 1987-08-12 | Rotary encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19991387A JPS6443718A (en) | 1987-08-12 | 1987-08-12 | Rotary encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6443718A true JPS6443718A (en) | 1989-02-16 |
Family
ID=16415687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19991387A Pending JPS6443718A (en) | 1987-08-12 | 1987-08-12 | Rotary encoder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6443718A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001183122A (en) * | 1999-10-12 | 2001-07-06 | Canon Inc | Optical rotational angle detecting device, rotation detecting device, and optical rotational angle detecting method |
DE10020980B4 (en) * | 1999-04-28 | 2005-01-27 | Pentax Corp. | Step-rotary encoder and surveying instrument with a step-rotary encoder |
JP2007127512A (en) * | 2005-11-04 | 2007-05-24 | Sendai Nikon:Kk | Rotary encoder |
JP2012233912A (en) * | 2009-11-06 | 2012-11-29 | Hexagon Metrology Aktiebolaget | Improved articulated arm |
WO2013017511A1 (en) * | 2011-08-03 | 2013-02-07 | Maschinenfabrik Reinhausen Gmbh | Position signaling device |
JP2016145813A (en) * | 2015-01-29 | 2016-08-12 | 株式会社デンソー | Rotation angle detection 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 (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5567608A (en) * | 1978-11-17 | 1980-05-21 | Nippon Kogaku Kk <Nikon> | Measurement unit for rotary angle |
-
1987
- 1987-08-12 JP JP19991387A patent/JPS6443718A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5567608A (en) * | 1978-11-17 | 1980-05-21 | Nippon Kogaku Kk <Nikon> | Measurement unit for rotary angle |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10020980B4 (en) * | 1999-04-28 | 2005-01-27 | Pentax Corp. | Step-rotary encoder and surveying instrument with a step-rotary encoder |
JP2001183122A (en) * | 1999-10-12 | 2001-07-06 | Canon Inc | Optical rotational angle detecting device, rotation detecting device, and optical rotational angle detecting method |
JP2007127512A (en) * | 2005-11-04 | 2007-05-24 | Sendai Nikon:Kk | Rotary encoder |
JP2012233912A (en) * | 2009-11-06 | 2012-11-29 | Hexagon Metrology Aktiebolaget | Improved articulated arm |
US11340056B2 (en) | 2009-11-06 | 2022-05-24 | Hexagon Technology Center Gmbh | CMM with improved sensors |
WO2013017511A1 (en) * | 2011-08-03 | 2013-02-07 | Maschinenfabrik Reinhausen Gmbh | Position signaling device |
JP2016145813A (en) * | 2015-01-29 | 2016-08-12 | 株式会社デンソー | Rotation angle detection 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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