JPS6450910A - Magnetic encoder - Google Patents
Magnetic encoderInfo
- Publication number
- JPS6450910A JPS6450910A JP20645187A JP20645187A JPS6450910A JP S6450910 A JPS6450910 A JP S6450910A JP 20645187 A JP20645187 A JP 20645187A JP 20645187 A JP20645187 A JP 20645187A JP S6450910 A JPS6450910 A JP S6450910A
- Authority
- JP
- Japan
- Prior art keywords
- tooth
- gear
- teeth
- phase
- integrally
- 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)
Abstract
PURPOSE:To make the weight of a gear light to reduce a rotational inertia force and thereby to improve precision in the phase of a mark pulse, by forming a tooth for the mark pulse on one of gears for detection integrally in extension in the axial direction CONSTITUTION:A gear 4 for detection having many teeth 3 and made of a magnetic material is fixed integrally to the rotating shaft 2 of a driving motor 1. On a specified tooth 3a out of these teeth 3, a tooth 5a for a mark pulse extending integrally in the axial direction and in the lateral direction of the gear 4 is formed. This tooth 5a is formed in such a manner that the teeth 3 of a width W is formed on the gear 4 and a part of a width W' is cut and removed therefrom. When the rotating shaft 2 rotates in prescribed numbers with the operation of the motor 1, a couple of count signals corresponding to each of the teeth 3 and being different in phase are obtained from a first magnetism detector 6a. From a second magnetism detector 6b, a couple of mark pulses corresponding to the tooth 5a and being different in phase are obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20645187A JPS6450910A (en) | 1987-08-21 | 1987-08-21 | Magnetic encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20645187A JPS6450910A (en) | 1987-08-21 | 1987-08-21 | Magnetic encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6450910A true JPS6450910A (en) | 1989-02-27 |
Family
ID=16523591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20645187A Pending JPS6450910A (en) | 1987-08-21 | 1987-08-21 | Magnetic encoder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6450910A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007285741A (en) * | 2006-04-13 | 2007-11-01 | Tdk Corp | Rotation detection device |
CN100362322C (en) * | 2004-06-24 | 2008-01-16 | 发那科株式会社 | Magnetic type angle sensor |
WO2012014697A1 (en) * | 2010-07-30 | 2012-02-02 | Thk株式会社 | Encoder and actuator |
DE102014007912B4 (en) | 2013-05-29 | 2018-04-26 | Fanuc Corporation | A rotation detector for determining the rotational movement of a rotating machine and equipped with a rotation detector device |
-
1987
- 1987-08-21 JP JP20645187A patent/JPS6450910A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100362322C (en) * | 2004-06-24 | 2008-01-16 | 发那科株式会社 | Magnetic type angle sensor |
US7400141B2 (en) * | 2004-06-24 | 2008-07-15 | Fanuc Ltd | Magnetic type angle sensor |
JP2007285741A (en) * | 2006-04-13 | 2007-11-01 | Tdk Corp | Rotation detection device |
WO2012014697A1 (en) * | 2010-07-30 | 2012-02-02 | Thk株式会社 | Encoder and actuator |
DE102014007912B4 (en) | 2013-05-29 | 2018-04-26 | Fanuc Corporation | A rotation detector for determining the rotational movement of a rotating machine and equipped with a rotation detector device |
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