JPH02140410U - - Google Patents
Info
- Publication number
- JPH02140410U JPH02140410U JP5049089U JP5049089U JPH02140410U JP H02140410 U JPH02140410 U JP H02140410U JP 5049089 U JP5049089 U JP 5049089U JP 5049089 U JP5049089 U JP 5049089U JP H02140410 U JPH02140410 U JP H02140410U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- position detector
- permanent magnet
- sensing surface
- detection element
- 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 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 1
- 229910052779 Neodymium Inorganic materials 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical group [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004907 flux Effects 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図は本考案の実施例を示す側面図、第２図
は他の実施例を示す側面図、第３図は変位と磁束
密度の関係図、第４図は従来例を示す側面図であ
る。
１……可動部、１１……非磁性板、２……磁気
検出素子、２１……感磁面、３，３′……永久磁
石、４……固定部。
Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 is a side view showing another embodiment, Fig. 3 is a diagram showing the relationship between displacement and magnetic flux density, and Fig. 4 is a side view showing a conventional example. be. DESCRIPTION OF SYMBOLS 1...Movable part, 11...Nonmagnetic plate, 2...Magnetic detection element, 21...Magnetic sensing surface, 3, 3'...Permanent magnet, 4...Fixed part.
Claims (1)
か一方に備え、永久磁石を他方に備えた位置検出
器において、前記永久磁石を両磁極の方向が移動
方向に対し直角になるように配置し、両磁極の中
間の位置で、かつ非磁性板に垂直な平面上に前記
感磁面を配置し、前記非磁性板を感磁面と平行な
方向に前記磁気検出素子と相対的に位置を変化し
うるようにした位置検出器。 ２ 前記磁気検出素子の感磁面と垂直に設けられ
た非磁性板上に二つの前記永久磁石を磁極面が異
極になるように適宜間隔離して固定した請求項１
記載の位置検出器。 ３ 前記永久磁石にネオジウム、鉄、硼素系の磁
石を使用した請求項１または２記載の位置検出器
。[Claims for Utility Model Registration] 1. A position detector that includes a magnetic detection element in either a movable part or a fixed part and a permanent magnet in the other, wherein the permanent magnet is arranged so that the direction of both magnetic poles is relative to the direction of movement. The magnetic sensing surface is placed at a position midway between both magnetic poles and on a plane perpendicular to the non-magnetic plate, and the magnetic sensing surface is placed in a direction parallel to the magnetic sensing surface with the non-magnetic plate. A position detector whose position can be changed relative to the element. 2. Claim 1, wherein the two permanent magnets are fixed on a non-magnetic plate provided perpendicularly to the magnetically sensitive surface of the magnetic detection element, separated from each other by an appropriate distance so that the magnetic pole surfaces are different in polarity.
Position detector as described. 3. The position detector according to claim 1 or 2, wherein the permanent magnet is a neodymium, iron, or boron magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989050490U JPH0635128Y2 (en) | 1989-04-27 | 1989-04-27 | Position detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989050490U JPH0635128Y2 (en) | 1989-04-27 | 1989-04-27 | Position detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02140410U true JPH02140410U (en) | 1990-11-26 |
| JPH0635128Y2 JPH0635128Y2 (en) | 1994-09-14 |
Family
ID=31569082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989050490U Expired - Lifetime JPH0635128Y2 (en) | 1989-04-27 | 1989-04-27 | Position detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635128Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006019094A1 (en) * | 2004-08-19 | 2006-02-23 | Sony Corporation | Lens position detector, lens barrel and imaging device |
| JP2006058512A (en) * | 2004-08-19 | 2006-03-02 | Sony Corp | Lens position detecting device |
| JP2007014492A (en) * | 2005-07-06 | 2007-01-25 | Japan Servo Co Ltd | Hold detection apparatus |
| JP2016145721A (en) * | 2015-02-06 | 2016-08-12 | 日立金属株式会社 | Distance measuring system and distance measuring method |
| JP2017058169A (en) * | 2015-09-15 | 2017-03-23 | リコーイメージング株式会社 | Position detecting device and optical device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4866866A (en) * | 1971-12-15 | 1973-09-13 |
-
1989
- 1989-04-27 JP JP1989050490U patent/JPH0635128Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4866866A (en) * | 1971-12-15 | 1973-09-13 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006019094A1 (en) * | 2004-08-19 | 2006-02-23 | Sony Corporation | Lens position detector, lens barrel and imaging device |
| JP2006058512A (en) * | 2004-08-19 | 2006-03-02 | Sony Corp | Lens position detecting device |
| CN100416330C (en) * | 2004-08-19 | 2008-09-03 | 索尼株式会社 | Lens position detector, lens barrel and imaging device |
| JP2007014492A (en) * | 2005-07-06 | 2007-01-25 | Japan Servo Co Ltd | Hold detection apparatus |
| JP4679984B2 (en) * | 2005-07-06 | 2011-05-11 | 日本電産サーボ株式会社 | Grip detection device |
| JP2016145721A (en) * | 2015-02-06 | 2016-08-12 | 日立金属株式会社 | Distance measuring system and distance measuring method |
| JP2017058169A (en) * | 2015-09-15 | 2017-03-23 | リコーイメージング株式会社 | Position detecting device and optical device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635128Y2 (en) | 1994-09-14 |
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