JP4941108B2 - 位置検出装置および位置決め装置 - Google Patents
位置検出装置および位置決め装置 Download PDFInfo
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- JP4941108B2 JP4941108B2 JP2007144657A JP2007144657A JP4941108B2 JP 4941108 B2 JP4941108 B2 JP 4941108B2 JP 2007144657 A JP2007144657 A JP 2007144657A JP 2007144657 A JP2007144657 A JP 2007144657A JP 4941108 B2 JP4941108 B2 JP 4941108B2
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- Prior art keywords
- pole
- magnetic field
- movable member
- calculation
- arithmetic
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- 238000001514 detection method Methods 0.000 claims description 47
- 230000005415 magnetization Effects 0.000 claims description 16
- 230000014509 gene expression Effects 0.000 description 19
- 238000000034 method Methods 0.000 description 2
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
- G01D1/16—Measuring arrangements giving results other than momentary value of variable, of general application giving a value which is a function of two or more values, e.g. product or ratio
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N52/00—Hall-effect devices
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measuring Magnetic Variables (AREA)
Description
図1に、本発明の第1実施形態の位置検出装置1の構成を示す。位置検出装置1は、x方向に移動可能な可動部材2の表面にN極3とS極4とを一定の着磁距離で交互に着磁し、可動部材2に対向するように固定された2つのホール素子(磁界検出素子)5で、可動部材2によって形成される磁界の強度をそれぞれ検出し、ホール素子5の検出信号をアンプ6を介して演算装置7に入力することにより、可動部材2の位置を算出するように構成されている。
A≧0、且つ、A+B≧0のときは、(A−B)/(A+B)+2、
A<0、且つ、B≧0のときは、(A+B)/(B−A)、
B<0、且つ、A+B<0のときは、(A−B)/(A+B)−2の演算を行う。
A≧0、B<0、且つ、A+B≧0のときは、(A+B)/(B−A)+4、
A≧0、B≧0、且つ、A+B≧0のときは、(A−B)/(A+B)+2、
A<0、且つ、B≧0のときは、(A+B)/(B−A)、
A<0、B<0、且つ、A+B<0のときは、(A−B)/(A+B)−2、
A≧0、B<0、且つ、A+B<0のときは、(A+B)/(B−A)−4の演算を行う。
A≧0、且つ、A+B≧0のときは、(A−B)/(A+B)+2、
A<0、且つ、B≧0のときは、(A+B)/(B−A)、
B<0、且つ、A+B<0のときは、(A−B)/(A+B)−2の演算を行う。
A≧0、B<0、且つ、A+B≧0のときは、(A+B)/(B−A)+4、
A≧0、B≧0、且つ、A+B≧0のときは、(A−B)/(A+B)+2、
A<0、且つ、B≧0のときは、(A+B)/(B−A)、
A<0、B<0、且つ、A+B<0のときは、(A−B)/(A+B)−2、
A≧0、B<0、且つ、A+B<0のときは、(A+B)/(B−A)−4の演算を行う。
2 可動部材
3 N極
4 S極
5 ホール素子
6 アンプ
7 演算装置
8 付着磁部
A 検出信号
B 検出信号
F(A,B)演算出力
Claims (3)
- 所定の可動方向に移動可能であり、前記可動方向に並んでN極とS極とに着磁された可動部材と、
前記可動部材に対向して、前記可動方向に並んで配設され、それぞれ、磁界の変化を検出する2つの磁界検出素子とを備え、
前記2つの磁界検出素子の検出信号をA,Bとして、前記A,Bを基に前記可動部材の位置を示す演算値を、
A≧0、且つ、A+B≧0のときは、(A−B)/(A+B)+2、
A<0、且つ、B≧0のときは、(A+B)/(B−A)、
B<0、且つ、A+B<0のときは、(A−B)/(A+B)−2の演算を行って算出することを特徴とする位置検出装置。 - 前記N極と前記S極とはそれぞれ1箇所ずつ着磁され、
前記2つの磁界検出手段の中央が、前記N極と前記S極との中央に対向する位置において、前記磁界検出素子の検出信号の小さい方をA、大きい方をBとすることを特徴とする請求項1に記載の位置検出装置。 - 前記2つの磁界検出手段の間隔は、前記N極と前記S極との着磁距離の1/2の奇数倍であることを特徴とする請求項1または2に記載の位置検出装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007144657A JP4941108B2 (ja) | 2007-05-31 | 2007-05-31 | 位置検出装置および位置決め装置 |
KR1020080043335A KR20080106000A (ko) | 2007-05-31 | 2008-05-09 | 위치검출장치 및 위치결정장치 |
CN2008101006654A CN101315286B (zh) | 2007-05-31 | 2008-05-20 | 位置检测装置及定位装置 |
US12/156,105 US20080297286A1 (en) | 2007-05-31 | 2008-05-29 | Position detector and positioning device |
EP08009945.0A EP1998146A3 (en) | 2007-05-31 | 2008-05-30 | Position detector and positioning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007144657A JP4941108B2 (ja) | 2007-05-31 | 2007-05-31 | 位置検出装置および位置決め装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008298570A JP2008298570A (ja) | 2008-12-11 |
JP4941108B2 true JP4941108B2 (ja) | 2012-05-30 |
Family
ID=39772986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007144657A Expired - Fee Related JP4941108B2 (ja) | 2007-05-31 | 2007-05-31 | 位置検出装置および位置決め装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080297286A1 (ja) |
EP (1) | EP1998146A3 (ja) |
JP (1) | JP4941108B2 (ja) |
KR (1) | KR20080106000A (ja) |
CN (1) | CN101315286B (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6032843B2 (ja) * | 2013-01-30 | 2016-11-30 | 矢崎総業株式会社 | 液面レベル検出装置 |
JP6032844B2 (ja) * | 2013-01-30 | 2016-11-30 | 矢崎総業株式会社 | 液面レベル検出装置 |
US9042716B2 (en) * | 2013-08-15 | 2015-05-26 | Allegro Microsystems, Llc | Method and apparatus for determining linear position using multiple magnetic field sensors |
DE202014105652U1 (de) * | 2014-11-24 | 2015-06-18 | Infineon Technologies Ag | Magnetanordnung für magnetischen Positionssensor und entsprechende Positionssensoreinrichtung |
DE102016110968B4 (de) * | 2016-06-15 | 2019-05-02 | Sick Ag | Sensor |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10113871A1 (de) * | 2001-03-21 | 2002-09-26 | Philips Corp Intellectual Pty | Anordnung zur Positions-, Winkel- oder Drehzahlbestimmung |
JP3912779B2 (ja) * | 2002-05-08 | 2007-05-09 | 松下電器産業株式会社 | 磁気式位置検出装置 |
JP2005284169A (ja) * | 2004-03-30 | 2005-10-13 | Konica Minolta Opto Inc | 駆動装置及び光学機器 |
JP2006112879A (ja) * | 2004-10-14 | 2006-04-27 | Yamaha Motor Co Ltd | 相対位置検出装置及び鞍乗り型車両 |
JP4400500B2 (ja) * | 2005-04-06 | 2010-01-20 | コニカミノルタオプト株式会社 | 位置検出器および位置決め装置 |
JP2007144657A (ja) | 2005-11-24 | 2007-06-14 | Sumitomo Heavy Ind Ltd | 樹脂成形方法及び金型装置 |
JP5089999B2 (ja) * | 2007-01-24 | 2012-12-05 | オリンパス株式会社 | 位置検出回路及びその応用装置 |
-
2007
- 2007-05-31 JP JP2007144657A patent/JP4941108B2/ja not_active Expired - Fee Related
-
2008
- 2008-05-09 KR KR1020080043335A patent/KR20080106000A/ko not_active Ceased
- 2008-05-20 CN CN2008101006654A patent/CN101315286B/zh not_active Expired - Fee Related
- 2008-05-29 US US12/156,105 patent/US20080297286A1/en not_active Abandoned
- 2008-05-30 EP EP08009945.0A patent/EP1998146A3/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP1998146A3 (en) | 2013-04-24 |
JP2008298570A (ja) | 2008-12-11 |
CN101315286A (zh) | 2008-12-03 |
KR20080106000A (ko) | 2008-12-04 |
EP1998146A2 (en) | 2008-12-03 |
CN101315286B (zh) | 2011-12-28 |
US20080297286A1 (en) | 2008-12-04 |
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