JPS62229002A - Position detector - Google Patents
Position detectorInfo
- Publication number
- JPS62229002A JPS62229002A JP7351786A JP7351786A JPS62229002A JP S62229002 A JPS62229002 A JP S62229002A JP 7351786 A JP7351786 A JP 7351786A JP 7351786 A JP7351786 A JP 7351786A JP S62229002 A JPS62229002 A JP S62229002A
- Authority
- JP
- Japan
- Prior art keywords
- magnets
- magnetic detection
- linearly
- detection body
- magnetic
- 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 abstract description 39
- 230000005415 magnetization Effects 0.000 abstract description 5
- 230000005389 magnetism Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000011949 advanced processing technology Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- AJCDFVKYMIUXCR-UHFFFAOYSA-N oxobarium;oxo(oxoferriooxy)iron Chemical compound [Ba]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O.O=[Fe]O[Fe]=O AJCDFVKYMIUXCR-UHFFFAOYSA-N 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は変位や位置の検出を行う位置検出装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a position detection device for detecting displacement and position.
従来の技術
位置検出装置は一般的に非常に使用頓度の高い直線変位
等の位置検出として使用され、たとえば、工作マシン等
の可動変位量や回転変位量などの位置検出用の検出端と
して用いられている。Conventional technology position detection devices are generally used for position detection such as linear displacement, which is very frequently used, and are used, for example, as a detection end for position detection of movable displacement or rotational displacement of machine tools, etc. It is being
最近、周知のように産業界全般にシステム化が進み、そ
のため、各種センサの開発要望が高まっている。Recently, as is well known, systemization has progressed throughout the industrial world, and as a result, the demand for the development of various sensors has increased.
たとえば、産業機器などの分野では、安価で精度良く実
用的な高信頼性でかつ、高耐久性に優れた位置検出装置
が特に必要とされている。For example, in the field of industrial equipment, there is a particular need for a position detection device that is inexpensive, accurate, practical, highly reliable, and highly durable.
従来では、一般的に知られている光検知方式（先行技術
文献として神山雅英：半導体トランスジューサ、工業調
査会（１９７３）や磁気検知方式（前記、同文献）を用
いたもの、さらには、一般的に周知である可変抵抗検知
方式などがあり、検出能力や高度な技術力を必要とする
ものや装置コストの面など、すべてに満足する高精度な
安定した位置検出装置は今のところ得られていないのが
現実である。Conventionally, methods using generally known optical detection methods (prior art documents include Masahide Kamiyama: Semiconductor Transducer, Kogyo Kenkyukai (1973)) and magnetic detection methods (mentioned above, same document); There is a variable resistance detection method that is well known in Japan, but so far there has not been a highly accurate and stable position detection device that satisfies all aspects, such as detection ability, the need for advanced technology, and the cost of the device. The reality is that there isn't.
発明が解決しようとする問題点
仁のような従来の位置検出装置によると、たとえば、可
変抵抗検知方式を用いたものでは、抵抗体に可動ブラシ
が接触するため、機械的磨耗によリ、信頼性、耐久性に
問題があった。また光学式を用いた位置検出装置では信
頼性、耐久性に優れるが、高度な加工技術と複雑な信号
処理回路を必要とするため非常に高価なものとなってい
る。さらに、非接触による磁気パターン検知方式では、
信号処理が複雑となっていた。いずれの方式においても
従来の位置検出装置には問題があった。Problems to be Solved by the Invention According to conventional position detection devices such as Jin, for example, in those using a variable resistance detection method, the movable brush comes into contact with the resistor, which causes mechanical wear and reliability. There were problems with performance and durability. In addition, position detection devices using optical methods have excellent reliability and durability, but are extremely expensive because they require advanced processing technology and complicated signal processing circuits. Furthermore, with the non-contact magnetic pattern detection method,
Signal processing was complicated. In either method, conventional position detection devices have had problems.
本発明は、かかる点に鑑みて、高信頼性、高耐久性、安
価で、特に、非接触にて位置検知が可能な位置検出装置
を提供するものである。In view of these points, the present invention provides a position detection device that is highly reliable, highly durable, inexpensive, and particularly capable of non-contact position detection.
問題点を解決するだめの手段
上記問題点を解決するために本発明は、棒状にかつテー
パー状に成形した一対のマグネットを一直線状に設け、
前記、マグネットの長さ方向と直角にかつ、互に反対方
向に磁化し、別に設けてなる磁気検出体を前記、マグネ
ットの長さ方向に沿ってかつ近接して可動させることに
よシ、磁力強度に対応した磁気検出体の出力信号で、前
記、マグネットと磁気検出体の相対位置を非接触にて検
知する構成としたものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a pair of rod-shaped and tapered magnets arranged in a straight line.
Magnetic force is achieved by moving a separately provided magnetic detection body that is magnetized perpendicularly to the length direction of the magnet and in opposite directions to each other and in close proximity to the length direction of the magnet. The structure is such that the relative position of the magnet and the magnetic detector is detected in a non-contact manner using the output signal of the magnetic detector corresponding to the intensity.
作用 この技術的手段による作用は次のようになる。action The effect of this technical means is as follows.
たとえば前記テーパー状に成形し互に反対方向に磁化さ
れたマグネットの長さ方向の表面磁気強度は、マグネッ
トのテーパー形状を制御することにより、自由にコント
ロールすることができる。For example, the surface magnetic strength in the longitudinal direction of the magnets formed into a tapered shape and magnetized in opposite directions can be freely controlled by controlling the tapered shape of the magnet.
その結果、別に設けてなる磁気検出体を前記一対のマグ
ネットの長さ方向に清ってかつ近接して可動させること
により、磁気検出体の可動位置を連続的に検知又は特定
位置のみを簡単に高精度よく検知できる。As a result, by moving a separately provided magnetic detector in the length direction of the pair of magnets and in close proximity to each other, the movable position of the magnetic detector can be continuously detected or only a specific position can be easily detected. Can be detected with high precision.
実施例
以下、本発明の一実施例を添付図面に基づいて説明する
。第１図は、不発明の構成図例を示す。EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings. FIG. 1 shows an example of an inventive block diagram.
第１図１，２はマグネットであり、たとえば、バリウム
フェライト等である。３は磁気検出体であシ、たとえば
、ホール素子等を用いた。４は磁気検出体の入出カケ−
プルである。５はマグネット１．２の取付支持台である
。６は磁気検出体の取付支持台である。マグネット１，
２の寸法は一例として棒状（５Ｘ５Ｘ８０ｏｔｍ）でか
つテーパー状１２に成形したものを１対用いた。そして
、このマグネソ） １ 、２を第１図のように一直線状
に支持台６によシ装置した。次にマグネット１，２はマ
グネットの長さ方向と直角にかつ、互に反対方向に磁化
して、磁化方向を設定した。そして、磁気検出体３を支
持している支持台６をたとえばスライダー等を用いてγ
又は８の方向へ一直線方向に可動させる。その時、磁気
検出体３とマグネット１，２の相対可動位置をＸ軸に、
磁気検出体３の出力信号をＹ軸としてグラフ化すると第
２図９のようになる。第１図の本装置を用いて第２図を
説明すると、第２図９．１０．１１の特性は、それぞれ
、マグネット１，２のテーパ一部分１２の傾斜形状をお
のおの変化させたものである。すなわち、第２図は、磁
気検出体３とマグネット１゜２との長さ方向の相対位置
を変化７，８させることにより、マグネット１，２と磁
気検出体３との距離及びマグネットの実効厚みが変化し
、磁気検出体３で受ける磁気強度情報（磁気検出体３で
得られる出力信号電圧）が直線的９又は非直線的１０．
１１に変化する。1 and 2 in FIG. 1 are magnets, such as barium ferrite. 3 is a magnetic detector, for example, a Hall element or the like is used. 4 is the entrance/exit hole for the magnetic detector.
It is a pull. 5 is a mounting support base for the magnet 1.2. Reference numeral 6 denotes a mounting support base for the magnetic detection body. Magnet 1,
As an example, a pair of rods (5 x 5 x 80 otm) shaped into a tapered shape 12 was used. Then, these magneso) 1 and 2 were placed on a support stand 6 in a straight line as shown in FIG. Next, the magnets 1 and 2 were magnetized perpendicularly to the length direction of the magnets and in opposite directions to set the magnetization directions. Then, use a slider or the like to move the support base 6 supporting the magnetic detection body 3 to γ.
Or move it straight in the direction of 8. At that time, the relative movable position of the magnetic detection body 3 and the magnets 1 and 2 is on the X axis,
When the output signal of the magnetic detector 3 is plotted as a graph on the Y axis, it becomes as shown in FIG. 29. To explain FIG. 2 using the present device of FIG. 1, the characteristics shown in FIG. 2 9, 10, and 11 are obtained by changing the slope shape of the tapered portion 12 of the magnets 1 and 2, respectively. That is, FIG. 2 shows that the distance between the magnets 1, 2 and the magnetic detector 3 and the effective thickness of the magnet can be changed by changing the relative position in the longitudinal direction of the magnetic detector 3 and the magnet 1°2. changes, and the magnetic intensity information received by the magnetic detector 3 (output signal voltage obtained by the magnetic detector 3) is linear9 or nonlinear10.
Changes to 11.
すなわち、磁化方向の異なる１対のマグネット１．２の
テーパ一部分１２の傾斜形状を変化させることにより、
第２図９．１０．１１に示した特性を得ることができる
のである。That is, by changing the slope shape of the tapered portion 12 of the pair of magnets 1.2 with different magnetization directions,
The characteristics shown in FIG. 2, 9.10.11 can be obtained.
これらの特性９，１０．１１は使用目的に自由に合せる
ことが可能である。These characteristics 9, 10, and 11 can be freely adjusted to the purpose of use.
発明の効果
以上のように本発明は、異なる磁化方向を有する１対の
テーパー形状を有するマグネットを一直線状に配置した
ことと、マグネク］・の長さ方向に沿って、かつ、近接
して磁気検出体との相対位置を可動させることにより、
磁気検出体で得られる検出信号のダイナミックレンジが
広く、高精度。Effects of the Invention As described above, the present invention is characterized in that a pair of tapered magnets having different magnetization directions are arranged in a straight line, and that magnetic By moving the relative position with the detection object,
The detection signal obtained by the magnetic detector has a wide dynamic range and high accuracy.
高感度で位置検出ができ、検出信号と検出位置との対応
特性を自由に制御することが可能となった。Position detection can be performed with high sensitivity, and the correspondence characteristics between detection signals and detection positions can be freely controlled.
本発明はこれにより、従来に比較して、高精度位置検出
が安価でかつ容易に高信頼性、非接触にて、行うことが
でき、工業的価値の犬なるものである。As a result, the present invention can perform high-precision position detection at low cost, easily, with high reliability, and in a non-contact manner compared to conventional methods, and is of great industrial value.
第１図は本発明の一実施例の位置検出装置の擾部拡大構
成図、第２図は一実施例の位置−出力１性図である。
１．２・・・・・・磁気極性の異なるマグネット、３・
・・・磁気検出体、４・・・・・・入出カケ−プル、６
，６・・・・取付支持台。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
磐
芋 ４第２図FIG. 1 is an enlarged block diagram of a position detecting device according to an embodiment of the present invention, and FIG. 2 is a position-output relationship diagram of an embodiment. 1.2... Magnets with different magnetic polarities, 3.
... Magnetic detection body, 4 ... Input/output cable, 6
, 6... Mounting support base. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Illustration Iwaimo 4 Figure 2
Claims (1)
一直線状に設け、前記マグネットの長さ方向と直角にか
つ、互に反対方向に磁化し、別に設けてなる磁気検出体
を前記マグネットの長さ方向に沿ってかつ近接して可動
可能に配置させ、磁気強度に対応した前記磁気検出体の
出力信号で、前記マグネットと磁気検出体の相対位置を
非接触にて検知するに構成した位置検出装置。A pair of rod-shaped and tapered magnets are provided in a straight line, magnetized perpendicularly to the length direction of the magnets and in opposite directions, and a magnetic detection body provided separately is magnetized in the length direction of the magnets. A position detection device configured to be movably arranged along and close to the magnet and detect the relative position of the magnet and the magnetic detection body in a non-contact manner using an output signal of the magnetic detection body corresponding to the magnetic intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7351786A JPS62229002A (en) | 1986-03-31 | 1986-03-31 | Position detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7351786A JPS62229002A (en) | 1986-03-31 | 1986-03-31 | Position detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62229002A true JPS62229002A (en) | 1987-10-07 |
Family
ID=13520513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7351786A Pending JPS62229002A (en) | 1986-03-31 | 1986-03-31 | Position detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62229002A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02161310A (en) * | 1988-12-14 | 1990-06-21 | Nhk Spring Co Ltd | Magnet body for detecting position |
| DE3940894A1 (en) * | 1989-12-11 | 1991-06-13 | Pepperl & Fuchs | POSITION SENSOR |
| JPH0485214U (en) * | 1990-11-30 | 1992-07-24 | ||
| US6496003B1 (en) | 1999-08-09 | 2002-12-17 | Hirofumi Okumura | Magnetic displacement detecting device having linear changing magnetic field over the length of the service |
| JP2006153670A (en) * | 2004-11-29 | 2006-06-15 | Fujitsu Component Ltd | Device for detecting location |
| JP2007198989A (en) * | 2006-01-30 | 2007-08-09 | Murakami Corp | Position detecting device, and mirror surface angle detection device of mirror for automobile |
| CN102680006A (en) * | 2011-03-16 | 2012-09-19 | 株式会社电装 | Stroke amount detecting device |
| US8698738B2 (en) | 2004-11-29 | 2014-04-15 | Fujitsu Component Limited | Position detection device |
| JP2015038527A (en) * | 2011-10-28 | 2015-02-26 | ピーエス特機株式会社 | Position detector |
| JP2016072463A (en) * | 2014-09-30 | 2016-05-09 | 日立金属株式会社 | Permanent magnet, position sensor, manufacturing method of permanent magnet, and magnetization device |
| WO2017022469A1 (en) * | 2015-08-04 | 2017-02-09 | ヤマハ発動機株式会社 | Relative position detection device, accelerator position sensor and vehicle |
-
1986
- 1986-03-31 JP JP7351786A patent/JPS62229002A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02161310A (en) * | 1988-12-14 | 1990-06-21 | Nhk Spring Co Ltd | Magnet body for detecting position |
| DE3940894A1 (en) * | 1989-12-11 | 1991-06-13 | Pepperl & Fuchs | POSITION SENSOR |
| DE3940894C2 (en) * | 1989-12-11 | 1993-04-22 | British Technology Group Ltd., London, Gb | |
| JPH0485214U (en) * | 1990-11-30 | 1992-07-24 | ||
| US6496003B1 (en) | 1999-08-09 | 2002-12-17 | Hirofumi Okumura | Magnetic displacement detecting device having linear changing magnetic field over the length of the service |
| US8698738B2 (en) | 2004-11-29 | 2014-04-15 | Fujitsu Component Limited | Position detection device |
| JP2006153670A (en) * | 2004-11-29 | 2006-06-15 | Fujitsu Component Ltd | Device for detecting location |
| JP4587791B2 (en) * | 2004-11-29 | 2010-11-24 | 富士通コンポーネント株式会社 | Position detection device |
| US8711089B2 (en) | 2004-11-29 | 2014-04-29 | Fujitsu Component Limited | Position detection device, pointing device and input device |
| JP2007198989A (en) * | 2006-01-30 | 2007-08-09 | Murakami Corp | Position detecting device, and mirror surface angle detection device of mirror for automobile |
| CN102680006A (en) * | 2011-03-16 | 2012-09-19 | 株式会社电装 | Stroke amount detecting device |
| JP2012194033A (en) * | 2011-03-16 | 2012-10-11 | Denso Corp | Stroke amount detecting device |
| US8829896B2 (en) | 2011-03-16 | 2014-09-09 | Denso Corporation | Stroke amount detecting device |
| JP2015038527A (en) * | 2011-10-28 | 2015-02-26 | ピーエス特機株式会社 | Position detector |
| JP2016072463A (en) * | 2014-09-30 | 2016-05-09 | 日立金属株式会社 | Permanent magnet, position sensor, manufacturing method of permanent magnet, and magnetization device |
| WO2017022469A1 (en) * | 2015-08-04 | 2017-02-09 | ヤマハ発動機株式会社 | Relative position detection device, accelerator position sensor and vehicle |
| TWI612319B (en) * | 2015-08-04 | 2018-01-21 | 山葉發動機股份有限公司 | Relative position detecting device, acceleration position sensor and vehicle |
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