JP2002340614A5 - - Google Patents
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- JP2002340614A5 JP2002340614A5 JP2001148709A JP2001148709A JP2002340614A5 JP 2002340614 A5 JP2002340614 A5 JP 2002340614A5 JP 2001148709 A JP2001148709 A JP 2001148709A JP 2001148709 A JP2001148709 A JP 2001148709A JP 2002340614 A5 JP2002340614 A5 JP 2002340614A5
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- Prior art keywords
- sets
- phase
- detection signal
- encoder
- motor
- Prior art date
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Claims (3)
前記スケールと相対的に移動し、前記複数組の格子パターンに対応した複数組の磁気センサと、
前記格子パターンに対応した複数組の磁気センサからの信号をそれぞれ位相信号に変換する位相変調部と、
前記位相変調部で得られた位相信号間の位相差からモータの磁極検出信号を生成する磁極検出信号生成部と、
前記位相変調部で得られた位相信号に基づいてモータの位置検出信号を生成する位置検出信号生成部と、を備え、
前記複数組の格子パターンは等ピッチのパターンで形成され、前記磁極検出信号は任意の格子パターン間におけるバーニア周期のピッチ数がモータの磁極対数の整数倍と等しくなるような少なくとも１組のバーニア周期を持つ１組または複数組の位相差信号を基に生成されることを特徴とするエンコーダ。A plurality of sets of lattice patterns comprising a scale;
A plurality of sets of magnetic sensors that move relative to the scale and correspond to the plurality of sets of lattice patterns;
A phase modulation unit that converts signals from a plurality of sets of magnetic sensors corresponding to the lattice pattern into phase signals, and
A magnetic pole detection signal generator for generating a magnetic pole detection signal of the motor from the phase difference between the phase signals obtained by the phase modulator;
A position detection signal generation unit that generates a position detection signal of the motor based on the phase signal obtained by the phase modulation unit,
The plurality of sets of grid patterns are formed in an equal pitch pattern, and the magnetic pole detection signal has at least one set of vernier periods such that the pitch number of vernier periods between arbitrary grid patterns is equal to an integral multiple of the number of magnetic pole pairs of the motor. An encoder that is generated based on one or a plurality of sets of phase difference signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001148709A JP4269246B2 (en) | 2001-05-18 | 2001-05-18 | Encoder and motor with encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001148709A JP4269246B2 (en) | 2001-05-18 | 2001-05-18 | Encoder and motor with encoder |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002340614A JP2002340614A (en) | 2002-11-27 |
| JP2002340614A5 true JP2002340614A5 (en) | 2005-10-06 |
| JP4269246B2 JP4269246B2 (en) | 2009-05-27 |
Family
ID=18993969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001148709A Expired - Fee Related JP4269246B2 (en) | 2001-05-18 | 2001-05-18 | Encoder and motor with encoder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4269246B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3854244B2 (en) | 2003-05-16 | 2006-12-06 | 株式会社東芝 | Permanent magnet motor and X-ray computed tomography apparatus |
| CN107650142B (en) * | 2017-07-12 | 2024-04-26 | 哈尔滨工大特种机器人有限公司 | Servo driving system applied to mechanical arm joint |
| CN109238316A (en) * | 2018-09-26 | 2019-01-18 | 上海市雷智电机有限公司 | A kind of transflection integral type grating assembly |
| CN116499501B (en) * | 2023-06-29 | 2023-09-12 | 江苏多维科技有限公司 | Magnetic sensor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04357417A (en) * | 1990-11-30 | 1992-12-10 | Mazda Motor Corp | Sensor with magnetic coating and its manufacture |
| JPH0556619A (en) * | 1991-08-20 | 1993-03-05 | Canon Electron Inc | Electromagnetic rotating machine |
| JPH06311718A (en) * | 1993-04-23 | 1994-11-04 | Matsushita Electric Ind Co Ltd | Magnetic encoder for brushless motor |
| JP3632711B2 (en) * | 1995-12-25 | 2005-03-23 | 株式会社安川電機 | Rotary encoder for motor pole detection |
| JPH10293042A (en) * | 1997-04-16 | 1998-11-04 | Yaskawa Electric Corp | Magnetic encoder device |
| JP2000046581A (en) * | 1998-05-22 | 2000-02-18 | Samutaku Kk | Magnetic encoder |
| KR100611435B1 (en) * | 1998-07-23 | 2006-08-09 | 가부시키가이샤 야스카와덴키 | Absolute encoder |
-
2001
- 2001-05-18 JP JP2001148709A patent/JP4269246B2/en not_active Expired - Fee Related
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