JPS61132758U - - Google Patents
Info
- Publication number
- JPS61132758U JPS61132758U JP1683985U JP1683985U JPS61132758U JP S61132758 U JPS61132758 U JP S61132758U JP 1683985 U JP1683985 U JP 1683985U JP 1683985 U JP1683985 U JP 1683985U JP S61132758 U JPS61132758 U JP S61132758U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- container
- rotating body
- magnetic flux
- teeth
- 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 6
- 230000004907 flux Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図はこの考案の一実施例を示す構成図、第
２図は第１図の―からみた平面図、第３図は
従来の回転検出装置の構成図である。
図において、１は回転軸、２は回転体、４は永
久磁石（磁束発生器）、５は容器、６は検出コイ
ル、１６は光変調器、２１は補強磁路である。な
お、各図中同一符号は同一又は相当部分を示す。
FIG. 1 is a block diagram showing an embodiment of this invention, FIG. 2 is a plan view taken from - in FIG. 1, and FIG. 3 is a block diagram of a conventional rotation detection device. In the figure, 1 is a rotating shaft, 2 is a rotating body, 4 is a permanent magnet (magnetic flux generator), 5 is a container, 6 is a detection coil, 16 is an optical modulator, and 21 is a reinforcing magnetic path. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
を有する磁性材からなる回転体と、磁性材からな
る容器に収納され、上記歯部と対向して配置され
て上記歯部との間に磁束を発生させる磁束発生器
との作用を利用して、検出コイルで上記回転軸の
回転数を検出するものにおいて、上記回転体の歯
先と対向する上記容器の側壁に他の部分より磁気
抵抗が小さくなるように補強磁路を設けたことを
特徴とする回転検出装置。 (2) 補強磁路は容器と一体化されていることを
特徴とする実用新案登録請求の範囲第１項記載の
回転検出装置。[Claims for Utility Model Registration] (1) A rotating body made of a magnetic material that is attached to the rotating shaft of an object to be measured and has a plurality of teeth, and a rotating body that is housed in a container made of the magnetic material and faces the teeth. The detection coil is configured to detect the rotational speed of the rotating shaft by utilizing the action of a magnetic flux generator that is disposed at a position and generates a magnetic flux between the magnetic flux generator and the toothed portion, in which the detection coil is located opposite to the tooth tips of the rotating body. A rotation detection device characterized in that a reinforcing magnetic path is provided on the side wall of the container so that the magnetic resistance is smaller than that in other parts. (2) The rotation detection device according to claim 1, wherein the reinforcing magnetic path is integrated with the container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1683985U JPS61132758U (en) | 1985-02-07 | 1985-02-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1683985U JPS61132758U (en) | 1985-02-07 | 1985-02-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61132758U true JPS61132758U (en) | 1986-08-19 |
Family
ID=30503984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1683985U Pending JPS61132758U (en) | 1985-02-07 | 1985-02-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61132758U (en) |
-
1985
- 1985-02-07 JP JP1683985U patent/JPS61132758U/ja active Pending