JPH02107889U - - Google Patents
Info
- Publication number
- JPH02107889U JPH02107889U JP1672689U JP1672689U JPH02107889U JP H02107889 U JPH02107889 U JP H02107889U JP 1672689 U JP1672689 U JP 1672689U JP 1672689 U JP1672689 U JP 1672689U JP H02107889 U JPH02107889 U JP H02107889U
- Authority
- JP
- Japan
- Prior art keywords
- separate cylinder
- axial direction
- detection shaft
- plunger
- fitted
- 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
- 238000006073 displacement reaction Methods 0.000 claims 1
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Description
第１図は本考案検出シヤフト可動ヨークの組立
図、第２図は従来例、および本考案実施例の検出
シヤフト可動ヨークの組立時を除いたバルブ位置
センサの断面図である。
１，１′……シリンダー、２，２Ｃ，２Ｄ，２
′，２Ｃ′，２Ｄ′……磁気センサ、２Ａ，２Ｂ
，２Ａ′，２Ｂ′……永久磁石、４，４′……検
出シヤスト、３……可動ヨーク、３′……ヨーク
、５，５′……バルブプランジヤ、６……シリン
ダー先端部、７……割溝。
FIG. 1 is an assembled view of the detection shaft movable yoke of the present invention, and FIG. 2 is a sectional view of the valve position sensor of the conventional example and the embodiment of the present invention, excluding the state in which the detection shaft movable yoke is assembled. 1, 1'...Cylinder, 2, 2C, 2D, 2
', 2C', 2D'...Magnetic sensor, 2A, 2B
, 2A', 2B'... Permanent magnet, 4, 4'... Detection thrust, 3... Movable yoke, 3'... Yoke, 5, 5'... Valve plunger, 6... Cylinder tip, 7... ...Warizo.
Claims (1)
ンダーを嵌合し、前記別体のシリンダー内に偏位
を検出すべきプランジヤーと同軸にその基端部を
連結した先端部中空の検出シヤフトを設け、前記
別体のシリンダーの外周部に磁気センサを軸方向
に微調可能に固定し、前記磁気センサは片面に磁
気抵抗素子を有する永久磁石を該磁気抵抗素子が
、前記別体のシリンダーに対向状に接する態様で
配設したものにおいて、前記基端部を連結した中
空の検出シヤフトの先端部の周面には軸方向に割
溝が形成され、かつ、円筒状のヨークを嵌合して
構成したことを特徴とする油圧バルブのプランジ
ヤー位置センサ。 A separate cylinder is fitted in the axial direction of the plunger of the hydraulic valve, and a detection shaft having a hollow tip is provided in the separate cylinder, the base end of which is coaxially connected to the plunger whose displacement is to be detected, and the detection shaft has a hollow tip. A magnetic sensor is fixed to the outer periphery of a separate cylinder so as to be finely adjustable in the axial direction, and the magnetic sensor includes a permanent magnet having a magnetic resistance element on one side, and the magnetic resistance element contacts the separate cylinder in an opposing manner. A groove is formed in the axial direction on the circumferential surface of the distal end of the hollow detection shaft connecting the base end, and a cylindrical yoke is fitted therein. A hydraulic valve plunger position sensor featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1672689U JPH02107889U (en) | 1989-02-15 | 1989-02-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1672689U JPH02107889U (en) | 1989-02-15 | 1989-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02107889U true JPH02107889U (en) | 1990-08-28 |
Family
ID=31229904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1672689U Pending JPH02107889U (en) | 1989-02-15 | 1989-02-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02107889U (en) |
-
1989
- 1989-02-15 JP JP1672689U patent/JPH02107889U/ja active Pending