JPS649302A - Non-contact displacement detector - Google Patents
Non-contact displacement detectorInfo
- Publication number
- JPS649302A JPS649302A JP16470887A JP16470887A JPS649302A JP S649302 A JPS649302 A JP S649302A JP 16470887 A JP16470887 A JP 16470887A JP 16470887 A JP16470887 A JP 16470887A JP S649302 A JPS649302 A JP S649302A
- Authority
- JP
- Japan
- Prior art keywords
- plane
- yoke
- magnet
- magnetic flux
- plane parallel
- 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
- 238000006073 displacement reaction Methods 0.000 title abstract 2
- 230000004907 flux Effects 0.000 abstract 6
- 230000002265 prevention Effects 0.000 abstract 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE:To increase linearity range of characteristic of a non-contact displacement detector, by arranging a yoke having a plane parallel with an Y-Z plane and a yoke parallel with an X-Z plane. CONSTITUTION:A magnetic circuit is completed with a yoke 1 having a plane parallel with an X-Z plane and is so located at such a distance that the yoke will not disturb a magnetic field at the position of the element 3 in a moving path of a magnetosensitive element 3. In the path, a magnetic flux 10 generated with a magnet 2 enters the yoke having a plane parallel with a Y-Z plane therebelow from a magnet 2, then, reaches the magnet 2 passing through a yoke having a plane parallel with the X-Z plane from the yoke and further a yoke having a plane parallel with the Y-Z plane thereabove. In other words, a magnetic flux generated at a desired position of the magnet 2 will not cross or combines with a magnetic flux generated from any other than the position. Thus, a flux density within a gap of the yoke and the magnet 2 at a desired position depends on the intensity of a magnetic field at the position. This eliminates the concentration of the magnetic flux with no plane parallel to an X-Y plane thereby enabling the prevention of saturation of the magnetic flux.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16470887A JPH0682041B2 (en) | 1987-07-01 | 1987-07-01 | Non-contact displacement detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16470887A JPH0682041B2 (en) | 1987-07-01 | 1987-07-01 | Non-contact displacement detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS649302A true JPS649302A (en) | 1989-01-12 |
JPH0682041B2 JPH0682041B2 (en) | 1994-10-19 |
Family
ID=15798372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16470887A Expired - Lifetime JPH0682041B2 (en) | 1987-07-01 | 1987-07-01 | Non-contact displacement detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0682041B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02109204U (en) * | 1989-02-15 | 1990-08-31 | ||
US5359288A (en) * | 1992-02-27 | 1994-10-25 | North American Philips Corporation | Position detecting apparatus using variable magnetic field intensity |
US6552532B1 (en) * | 1998-07-24 | 2003-04-22 | Next Corporation | Displacement detector with relatively movable magnet and sensor |
JP2005195481A (en) * | 2004-01-08 | 2005-07-21 | Japan Servo Co Ltd | Magnetic linear position sensor |
JP2006153670A (en) * | 2004-11-29 | 2006-06-15 | Fujitsu Component Ltd | Device for detecting location |
WO2007069680A1 (en) * | 2005-12-16 | 2007-06-21 | Asahi Kasei Emd Corporation | Position detector |
JP2008286588A (en) * | 2007-05-16 | 2008-11-27 | Alps Electric Co Ltd | Position detection device |
US8698738B2 (en) | 2004-11-29 | 2014-04-15 | Fujitsu Component Limited | Position detection device |
-
1987
- 1987-07-01 JP JP16470887A patent/JPH0682041B2/en not_active Expired - Lifetime
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02109204U (en) * | 1989-02-15 | 1990-08-31 | ||
US5359288A (en) * | 1992-02-27 | 1994-10-25 | North American Philips Corporation | Position detecting apparatus using variable magnetic field intensity |
US6552532B1 (en) * | 1998-07-24 | 2003-04-22 | Next Corporation | Displacement detector with relatively movable magnet and sensor |
JP2005195481A (en) * | 2004-01-08 | 2005-07-21 | Japan Servo Co Ltd | Magnetic linear position sensor |
JP2006153670A (en) * | 2004-11-29 | 2006-06-15 | Fujitsu Component Ltd | Device for detecting location |
US8698738B2 (en) | 2004-11-29 | 2014-04-15 | Fujitsu Component Limited | Position detection device |
US8711089B2 (en) | 2004-11-29 | 2014-04-29 | Fujitsu Component Limited | Position detection device, pointing device and input device |
WO2007069680A1 (en) * | 2005-12-16 | 2007-06-21 | Asahi Kasei Emd Corporation | Position detector |
JPWO2007069680A1 (en) * | 2005-12-16 | 2009-05-28 | 旭化成エレクトロニクス株式会社 | Position detection device |
KR100964406B1 (en) * | 2005-12-16 | 2010-06-15 | 아사히 가세이 일렉트로닉스 가부시끼가이샤 | Position detection apparatus |
JP4589410B2 (en) * | 2005-12-16 | 2010-12-01 | 旭化成エレクトロニクス株式会社 | Position detection device |
JP2008286588A (en) * | 2007-05-16 | 2008-11-27 | Alps Electric Co Ltd | Position detection device |
Also Published As
Publication number | Publication date |
---|---|
JPH0682041B2 (en) | 1994-10-19 |
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