JPH0374318U - - Google Patents
Info
- Publication number
- JPH0374318U JPH0374318U JP13665789U JP13665789U JPH0374318U JP H0374318 U JPH0374318 U JP H0374318U JP 13665789 U JP13665789 U JP 13665789U JP 13665789 U JP13665789 U JP 13665789U JP H0374318 U JPH0374318 U JP H0374318U
- Authority
- JP
- Japan
- Prior art keywords
- magnetoresistive elements
- magnetoresistive
- permanent magnet
- detected
- detected body
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 230000035699 permeability Effects 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図は本考案にかかる位置検出装置をロツド
の変位検出に使用した一例の断面図、第２図以下
は従来例を示し、第２図〜第５図は従来の位置検
出装置の動作を示す断面図、第６図はその出力信
号波形図、第７図は他の従来例の断面図である。
１……ロツド（被検出体）、２……高透磁率部
、３……低透磁率部、４……検出センサ、５，６
……磁気抵抗素子、７……主永久磁石、８……副
永久磁石。
Fig. 1 is a sectional view of an example in which the position detection device according to the present invention is used to detect the displacement of a rod, Fig. 2 and the following show a conventional example, and Figs. 2 to 5 show the operation of the conventional position detection device. 6 is an output signal waveform diagram thereof, and FIG. 7 is a sectional view of another conventional example. 1... Rod (detected object), 2... High magnetic permeability part, 3... Low magnetic permeability part, 4... Detection sensor, 5, 6
... Magnetoresistive element, 7 ... Main permanent magnet, 8 ... Sub-permanent magnet.
Claims (1)
体と、被検出体に対して相対移動可能に近接配置
された少なくとも２個一組の磁気抵抗素子と、磁
束が磁気抵抗素子を貫いて被検出体に対してほぼ
直角方向に作用するように、磁気抵抗素子に対し
て相対移動不能に配置された主永久磁石とを備え
、磁気抵抗素子は互いに直列接続され、両磁気抵
抗素子の両端に信号が入力され、その中央より信
号が出力されるようにした位置検出装置において
、 磁気抵抗素子の配列方向に位置調節可能で、主
永久磁石より磁気抵抗素子の配列方向の寸法が小
さく、かつその磁束が磁気抵抗素子を貫いて被検
出体に対してほぼ直角方向に作用する副永久磁石
を設けたことを特徴とする位置検出装置。[Claims for Utility Model Registration] A detected body in which portions with different magnetic permeability are alternately provided, a set of at least two magnetoresistive elements arranged in close proximity to the detected body so as to be movable relative to the detected body, and a magnetic flux. and a main permanent magnet disposed immovably relative to the magnetoresistive element so that the magnetoresistive element penetrates the magnetoresistive element and acts on the detected object in a substantially perpendicular direction, and the magnetoresistive elements are connected in series with each other. In a position detection device in which a signal is input to both ends of both magnetoresistive elements and a signal is output from the center, the position can be adjusted in the direction in which the magnetoresistive elements are arranged, and the arrangement of the magnetoresistive elements is closer to the main permanent magnet. 1. A position detection device characterized by being provided with an auxiliary permanent magnet which has a small dimension in a direction and whose magnetic flux penetrates a magnetic resistance element and acts on an object to be detected in a substantially perpendicular direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13665789U JPH069306Y2 (en) | 1989-11-24 | 1989-11-24 | Position detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13665789U JPH069306Y2 (en) | 1989-11-24 | 1989-11-24 | Position detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0374318U true JPH0374318U (en) | 1991-07-25 |
| JPH069306Y2 JPH069306Y2 (en) | 1994-03-09 |
Family
ID=31683854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13665789U Expired - Lifetime JPH069306Y2 (en) | 1989-11-24 | 1989-11-24 | Position detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069306Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004103780A (en) * | 2002-09-09 | 2004-04-02 | Nec Tokin Corp | Magnetic impedance element |
| JP2015021736A (en) * | 2013-07-16 | 2015-02-02 | アルプス電気株式会社 | Position detection device |
| WO2017199648A1 (en) * | 2016-05-17 | 2017-11-23 | 株式会社デンソー | Position sensor |
-
1989
- 1989-11-24 JP JP13665789U patent/JPH069306Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004103780A (en) * | 2002-09-09 | 2004-04-02 | Nec Tokin Corp | Magnetic impedance element |
| JP2015021736A (en) * | 2013-07-16 | 2015-02-02 | アルプス電気株式会社 | Position detection device |
| WO2017199648A1 (en) * | 2016-05-17 | 2017-11-23 | 株式会社デンソー | Position sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH069306Y2 (en) | 1994-03-09 |
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