JPS5627604A - Displacement detector - Google Patents
Displacement detectorInfo
- Publication number
- JPS5627604A JPS5627604A JP10280679A JP10280679A JPS5627604A JP S5627604 A JPS5627604 A JP S5627604A JP 10280679 A JP10280679 A JP 10280679A JP 10280679 A JP10280679 A JP 10280679A JP S5627604 A JPS5627604 A JP S5627604A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic field
- resistance element
- interface
- 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
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 accomplish the precise measurement of fine displacement by detecting the displacement with respect to the interface of the magnetic field of a magnetic resistance element from changes in the resistance of the element provided on the interface of two magnetic fields intersected to each other in such a manner that the main current passage is parallel to one magnetic field thereof.
CONSTITUTION: The magnetic resistance element 1 has a ferromagnetic thin metal film 1b and electrodes 1c and 1d on the substrate 1a. The first magnetic field 2 and the second magnetic field 3 are provided, one parallel to and the other perpendicular to the length of the magnetic resistance element in such a manner that the magnetic field intensity is high enough to magnetize the magnetic resistance element 1 saturatedly. A constant voltage power source 5 is connected to the element 1 to check voltage changes of a series resistance 4 whereby detection is made on how the magnetic resistance element displaces from the interface between the first and second magnetic fields. This is accomplished because the resistance of the magnetic resistance element 1 reaches its maximum in the magnetic field parallel to the main current while its minimum in the magnetic field perpendicular thereto. This enables precise measurement of the fine displacement contactless.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10280679A JPS6034048B2 (en) | 1979-08-14 | 1979-08-14 | displacement detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10280679A JPS6034048B2 (en) | 1979-08-14 | 1979-08-14 | displacement detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5627604A true JPS5627604A (en) | 1981-03-18 |
JPS6034048B2 JPS6034048B2 (en) | 1985-08-06 |
Family
ID=14337293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10280679A Expired JPS6034048B2 (en) | 1979-08-14 | 1979-08-14 | displacement detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6034048B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4677377A (en) * | 1984-08-10 | 1987-06-30 | Hitachi, Ltd. | Position-detecting sensor for detecting position of a moving object utilizing magnetism |
US4713613A (en) * | 1983-10-19 | 1987-12-15 | Hitachi, Ltd. | Device for magnetically detecting displacement of non-magnetic movable member |
JP2005308432A (en) * | 2004-04-19 | 2005-11-04 | Matsushita Electric Ind Co Ltd | Position detection sensor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6065826U (en) * | 1983-10-13 | 1985-05-10 | 日本プラスト株式会社 | steering device |
JPS63192102U (en) * | 1987-05-29 | 1988-12-12 |
-
1979
- 1979-08-14 JP JP10280679A patent/JPS6034048B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4713613A (en) * | 1983-10-19 | 1987-12-15 | Hitachi, Ltd. | Device for magnetically detecting displacement of non-magnetic movable member |
US4677377A (en) * | 1984-08-10 | 1987-06-30 | Hitachi, Ltd. | Position-detecting sensor for detecting position of a moving object utilizing magnetism |
JP2005308432A (en) * | 2004-04-19 | 2005-11-04 | Matsushita Electric Ind Co Ltd | Position detection sensor |
Also Published As
Publication number | Publication date |
---|---|
JPS6034048B2 (en) | 1985-08-06 |
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