JPS6488115A - Rotary encoder - Google Patents
Rotary encoderInfo
- Publication number
- JPS6488115A JPS6488115A JP24693487A JP24693487A JPS6488115A JP S6488115 A JPS6488115 A JP S6488115A JP 24693487 A JP24693487 A JP 24693487A JP 24693487 A JP24693487 A JP 24693487A JP S6488115 A JPS6488115 A JP S6488115A
- Authority
- JP
- Japan
- Prior art keywords
- magneto
- resistance element
- couples
- couple
- circuit
- 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
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE:To improve rotary distance detection accuracy by providing specific magneto-resistance element pattern couples on a magneto-resistance element at specific intervals and generating pulse signals as many as the couples. CONSTITUTION:The magneto-resistance element 2 has two couples of magneto- resistance element patterns 5 and 5', and 6 and 6', one couple of magneto- resistance element patterns are provided at a distance 1/2L, and the other couple of magneto-resistance element patterns 6 and 6' are provided at an interval (1+1/4)L with the couple of magneto-resistance element patterns 5 and 5'. The magneto-resistance element pattern couples 5 and 5', and 6 and 6' generate signals (a) and (a') which alternate according to the movement of the flank of a magnetized body, and the signal processing circuit consisting of comparators 8 and 8', an AND circuit 11, a NOR circuit 12, and an AND circuit 11' processes the signals (a) and (a') to generate two pulse signals (d) proportional to the movement distance of a magnetized pattern, thereby improving the measurement accuracy.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24693487A JPS6488115A (en) | 1987-09-29 | 1987-09-29 | Rotary encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24693487A JPS6488115A (en) | 1987-09-29 | 1987-09-29 | Rotary encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6488115A true JPS6488115A (en) | 1989-04-03 |
Family
ID=17155922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24693487A Pending JPS6488115A (en) | 1987-09-29 | 1987-09-29 | Rotary encoder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6488115A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7253613B2 (en) | 2004-11-02 | 2007-08-07 | Denso Corporation | Rotation detecting device |
JP2014202704A (en) * | 2013-04-09 | 2014-10-27 | 三菱電機株式会社 | Magnetic field detection device |
-
1987
- 1987-09-29 JP JP24693487A patent/JPS6488115A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7253613B2 (en) | 2004-11-02 | 2007-08-07 | Denso Corporation | Rotation detecting device |
US7307417B2 (en) | 2004-11-02 | 2007-12-11 | Denso Corporation | Rotation detecting device |
JP2014202704A (en) * | 2013-04-09 | 2014-10-27 | 三菱電機株式会社 | Magnetic field detection device |
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