JPH0473804U - - Google Patents
Info
- Publication number
- JPH0473804U JPH0473804U JP11662490U JP11662490U JPH0473804U JP H0473804 U JPH0473804 U JP H0473804U JP 11662490 U JP11662490 U JP 11662490U JP 11662490 U JP11662490 U JP 11662490U JP H0473804 U JPH0473804 U JP H0473804U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- piston head
- permanent magnet
- magnetic poles
- 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 5
- 238000010586 diagram Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 1
Landscapes
- Measuring Magnetic Variables (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
第１図は本考案を具体化したシリンダのピスト
ン位置検出装置の一実施例を示す断面図、第２図
は検出スイツチの断面図、第３図は検出回路の回
路図、第４図は各ホール素子と磁気の影響との関
係を示す説明図である。
１……シリンダチユーブ、４……ピストンヘツ
ド、５……ピストンロツド、６……ピストン、９
……永久磁石、９ａ，９ｂ……磁極、１２……第
一ホール素子（磁気センサ）、１３……第二ホー
ル素子（磁気センサ）、１４……検出回路（判別
手段）、１５……発光ダイオード（表示手段）。
Fig. 1 is a sectional view showing an embodiment of a cylinder piston position detection device embodying the present invention, Fig. 2 is a sectional view of a detection switch, Fig. 3 is a circuit diagram of a detection circuit, and Fig. 4 shows each FIG. 3 is an explanatory diagram showing the relationship between a Hall element and the influence of magnetism. 1... Cylinder tube, 4... Piston head, 5... Piston rod, 6... Piston, 9
...Permanent magnet, 9a, 9b...Magnetic pole, 12...First Hall element (magnetic sensor), 13...Second Hall element (magnetic sensor), 14...Detection circuit (discrimination means), 15...Light emission Diode (display means).
Claims (1)
ストンロツド５とよりなるピストン６を往復動可
能に設けたシリンダにおいて、 前記ピストンヘツド４の外周に永久磁石９をそ
の磁極９ａ，９ｂがピストンヘツド４の外周面に
沿つて並ぶように設け、シリンダチユーブ１の外
周には前記永久磁石９の各磁極９ａ，９ｂをそれ
ぞれ検出する二つの磁気センサ１２，１３を設け
、更に両磁気センサ１２，１３の出力の差を判別
する判別手段１４と、その判別結果を表示する表
示手段１５とを設けたことを特徴とするシリンダ
のピストン位置検出装置。[Claims for Utility Model Registration] A cylinder in which a piston 6 consisting of a piston head 4 and a piston rod 5 is provided in a cylinder tube 1 so as to be able to reciprocate, a permanent magnet 9 is attached to the outer periphery of the piston head 4, and its magnetic poles 9a, 9b are provided. are arranged along the outer circumferential surface of the piston head 4, and two magnetic sensors 12 and 13 are provided on the outer circumference of the cylinder tube 1 to detect the magnetic poles 9a and 9b of the permanent magnet 9, respectively. 1. A piston position detection device for a cylinder, characterized in that it is provided with a discriminating means 14 for discriminating the difference between the outputs of the cylinders 12 and 13, and a display means 15 for displaying the discrimination result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11662490U JPH0473804U (en) | 1990-11-05 | 1990-11-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11662490U JPH0473804U (en) | 1990-11-05 | 1990-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0473804U true JPH0473804U (en) | 1992-06-29 |
Family
ID=31864462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11662490U Pending JPH0473804U (en) | 1990-11-05 | 1990-11-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0473804U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002062104A (en) * | 2000-05-23 | 2002-02-28 | Soc Appl Gen Electr Mec <Sagem> | Axial position sensor for axially movable rod, and electromagnetic actuator of valve provided with the same |
| JP2008076193A (en) * | 2006-09-20 | 2008-04-03 | Asahi Kasei Electronics Co Ltd | Position detector, optical system with position detector, and imaging device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02194301A (en) * | 1989-01-23 | 1990-07-31 | Taiyo Ltd | Method for detecting piston position of fluid pressure cylinder |
-
1990
- 1990-11-05 JP JP11662490U patent/JPH0473804U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02194301A (en) * | 1989-01-23 | 1990-07-31 | Taiyo Ltd | Method for detecting piston position of fluid pressure cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002062104A (en) * | 2000-05-23 | 2002-02-28 | Soc Appl Gen Electr Mec <Sagem> | Axial position sensor for axially movable rod, and electromagnetic actuator of valve provided with the same |
| JP2008076193A (en) * | 2006-09-20 | 2008-04-03 | Asahi Kasei Electronics Co Ltd | Position detector, optical system with position detector, and imaging device |
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