JPS6454311A - Absolute encoder - Google Patents
Absolute encoderInfo
- Publication number
- JPS6454311A JPS6454311A JP21021387A JP21021387A JPS6454311A JP S6454311 A JPS6454311 A JP S6454311A JP 21021387 A JP21021387 A JP 21021387A JP 21021387 A JP21021387 A JP 21021387A JP S6454311 A JPS6454311 A JP S6454311A
- Authority
- JP
- Japan
- Prior art keywords
- slit
- signal
- stored
- slits
- series data
- 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 reduce the cost and improve the reliability by providing a rotary disk with three specific kinds of slits. CONSTITUTION:The rotary disk 1 is provided with slits A and B for generating a 90 deg. phase difference signal, a slit C stored with the absolute position of an angle of rotation as series data, and a slit D stored with an identification signal for series data adjacent to the series data. Then a bidirectional shift register 7 is provided which inputs the output of the slit C and converts the series signal into a parallel signal, and a parallel signal from the register 7 is stored by a latch circuit 8, whose output is inputted to an adder subtracter 9. Consequent ly, even if the resolution is improved, the number of slits need not be increased, so the cost of the absolute encoder is reduced and the reliability is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21021387A JPS6454311A (en) | 1987-08-26 | 1987-08-26 | Absolute encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21021387A JPS6454311A (en) | 1987-08-26 | 1987-08-26 | Absolute encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6454311A true JPS6454311A (en) | 1989-03-01 |
Family
ID=16585660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21021387A Pending JPS6454311A (en) | 1987-08-26 | 1987-08-26 | Absolute encoder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6454311A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110274618A (en) * | 2018-03-16 | 2019-09-24 | 富士电机株式会社 | Absolute location information detection device and its control method |
-
1987
- 1987-08-26 JP JP21021387A patent/JPS6454311A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110274618A (en) * | 2018-03-16 | 2019-09-24 | 富士电机株式会社 | Absolute location information detection device and its control method |
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