JPH0368071U - - Google Patents
Info
- Publication number
- JPH0368071U JPH0368071U JP12972589U JP12972589U JPH0368071U JP H0368071 U JPH0368071 U JP H0368071U JP 12972589 U JP12972589 U JP 12972589U JP 12972589 U JP12972589 U JP 12972589U JP H0368071 U JPH0368071 U JP H0368071U
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- magnet
- protrusions
- disposed
- group
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Description
第１図〜第４図は本考案の一実施例の説明図で
あり、第１図は第１の歯車の歯（第１突起のグル
ープ）と第２の歯車の歯（第２突起のグループ）
の関係を示す平面図、第２図は同側面図、第３図
及び第４図は実施例装置の構成及び作用の説明に
供する平面図、第５図は従来の回転検出装置の一
例を示す側面図である。
Ａ……第１の歯車、Ｂ……第２の歯車、１……
スペーサ、２……回転軸、３Ａ，３Ｂ……歯、４
……バイアス磁石、５……ヨーク、６Ａ……第１
の磁電変換素子、６Ｂ……第２の磁電変換素子、
ＪＡ……第１の磁路、ＪＢ……第２の磁路。
1 to 4 are explanatory diagrams of one embodiment of the present invention, and FIG. 1 shows the teeth of the first gear (group of first protrusions) and the teeth of the second gear (group of second protrusions). )
2 is a side view of the same, FIGS. 3 and 4 are plan views for explaining the configuration and operation of the embodiment device, and FIG. 5 is an example of a conventional rotation detection device. FIG. A...First gear, B...Second gear, 1...
Spacer, 2... Rotating shaft, 3A, 3B... Teeth, 4
...Bias magnet, 5...Yoke, 6A...1st
magnetoelectric conversion element, 6B...second magnetoelectric conversion element,
JA...first magnetic path, JB...second magnetic path.
Claims (1)
軌跡近傍に配置された磁石と、この磁石の近傍に
配置され上記突起が該磁石の発生磁界中を通過す
る際に生じる磁気的変化に応じた電気出力を発生
する磁電変換素子と、を備えた回転検出装置にお
いて、 上記突起は、第１の同一円周上にある第１突起
のグループと、第２の同一円周上にある第２突起
のグループとに分かれ、第１突起のグループと第
２突起のグループは上記回転体の回転軸線方向に
間隔をおいて配設され、かつ第１突起と第２突起
は円周方向に所定ピツチずつずれており、また第
１突起の回転軌跡と第２突起の回転軌跡の間に上
記磁石が配設され、さらに第１突起が上記磁石の
近傍を通過したときには第１突起を通る第１の磁
路を形成しまた第２突起が上記磁石の近傍を通過
したときには第２突起を通る第２の磁路を形成す
るよう上記磁石と関連付けてヨークが配設され、
しかも上記第１の磁路が形成される空間には第１
の磁電変換素子が配設され、第２の磁路が形成さ
れる空間には第２の磁電変換素子が配設されてい
ることを特徴とする回転検出装置。[Claims for Utility Model Registration] A magnetic protrusion provided on a rotating body, a magnet disposed near the locus of passage of the protrusion, and the protrusion disposed near the magnet passing through a magnetic field generated by the magnet. and a magneto-electric transducer that generates an electrical output in accordance with a magnetic change that occurs when the rotation detects the rotation. and a group of second protrusions on the same circumference, the group of first protrusions and the group of second protrusions are arranged at intervals in the direction of the rotational axis of the rotating body, and the group of first protrusions and the group of second protrusions are The protrusions are shifted by a predetermined pitch in the circumferential direction, and the magnet is disposed between the rotation locus of the first protrusion and the rotation locus of the second protrusion, and when the first protrusion passes near the magnet, A yoke is disposed in association with the magnet to form a first magnetic path passing through the first protrusion and to form a second magnetic path passing through the second protrusion when the second protrusion passes near the magnet. ,
Moreover, in the space where the first magnetic path is formed, there is a first magnetic path.
A rotation detection device characterized in that a magnetoelectric conversion element is disposed, and a second magnetoelectric conversion element is disposed in a space in which a second magnetic path is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12972589U JPH0368071U (en) | 1989-11-08 | 1989-11-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12972589U JPH0368071U (en) | 1989-11-08 | 1989-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0368071U true JPH0368071U (en) | 1991-07-03 |
Family
ID=31677336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12972589U Pending JPH0368071U (en) | 1989-11-08 | 1989-11-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0368071U (en) |
-
1989
- 1989-11-08 JP JP12972589U patent/JPH0368071U/ja active Pending
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