JPH0241163U - - Google Patents
Info
- Publication number
- JPH0241163U JPH0241163U JP1988119323U JP11932388U JPH0241163U JP H0241163 U JPH0241163 U JP H0241163U JP 1988119323 U JP1988119323 U JP 1988119323U JP 11932388 U JP11932388 U JP 11932388U JP H0241163 U JPH0241163 U JP H0241163U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- rotation
- detection pattern
- magnets
- pulse detection
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Electric Motors In General (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は、本考案の一実施例による回転検出回
路を示すブロツク図、第２図及び第３図はそれぞ
れ第１図の磁石及びＦＧパターンのパターンを示
す展開図、第４図及び第５図はそれぞれ本実施例
による出力正弦波及び出力矩形波を示す波形図、
第６図は従来の回転検出回路を示すブロツク図、
第７図及び第８図はそれぞれ第６図の磁石及びＦ
Ｇパターンのパターンを示す展開図、第９図及び
第１０図はそれぞれ従来の出力正弦波及び出力矩
形波を示す波形図である。
１……ステータ、２……ＦＧパターン、３……
ロータ、４……磁石。
FIG. 1 is a block diagram showing a rotation detection circuit according to an embodiment of the present invention, FIGS. 2 and 3 are exploded views showing the magnet and FG pattern of FIG. 1, and FIGS. 4 and 5 respectively. The figures are waveform diagrams showing an output sine wave and an output rectangular wave according to this embodiment, respectively.
FIG. 6 is a block diagram showing a conventional rotation detection circuit.
Figures 7 and 8 show the magnet and F of Figure 6, respectively.
A developed diagram showing the G pattern, and FIGS. 9 and 10 are waveform diagrams showing a conventional output sine wave and an output rectangular wave, respectively. 1...Stator, 2...FG pattern, 3...
Rotor, 4... magnet.
Claims (1)
転周方向に交互に極性を逆にして取付けられた複
数の永久磁石と、 前記ロータに対応して固定された基板に前記複
数の磁石に対向するように前記回転軸に対して同
心状に同一ピツチで前記磁石との対向距離が変化
するように設けられたパルス検出用パターンと、
前記ロータの回転によつて前記パルス検出用パタ
ーンに発生するパルスを検出して前記回転体の回
転を検出する回転検出装置において、 前記パルス検出用パターンのピツチの平面形状
を鋸歯状に形成したことを特徴とする回転検出装
置。[Claims for Utility Model Registration] A plurality of permanent magnets that are attached to a rotor that rotates together with the rotating shaft of a rotating body with their polarities alternately reversed in the circumferential direction of the rotor, and a substrate that is fixed in correspondence with the rotor. a pulse detection pattern provided so as to face the plurality of magnets and concentrically with respect to the rotating shaft so that the facing distance with the magnets changes at the same pitch;
In the rotation detection device that detects the rotation of the rotating body by detecting pulses generated in the pulse detection pattern due to rotation of the rotor, the planar shape of the pitch of the pulse detection pattern is formed in a sawtooth shape. A rotation detection device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988119323U JPH0241163U (en) | 1988-09-13 | 1988-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988119323U JPH0241163U (en) | 1988-09-13 | 1988-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241163U true JPH0241163U (en) | 1990-03-22 |
Family
ID=31364452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988119323U Pending JPH0241163U (en) | 1988-09-13 | 1988-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100386062B1 (en) * | 1994-09-16 | 2003-08-21 | 무빙 마그네 테크놀로지 에쎄. 아. | Speed and / or Position Incremental Sensors |
-
1988
- 1988-09-13 JP JP1988119323U patent/JPH0241163U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100386062B1 (en) * | 1994-09-16 | 2003-08-21 | 무빙 마그네 테크놀로지 에쎄. 아. | Speed and / or Position Incremental Sensors |
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