JPS5773618A - Linear displacement detecting method - Google Patents
Linear displacement detecting methodInfo
- Publication number
- JPS5773618A JPS5773618A JP14959880A JP14959880A JPS5773618A JP S5773618 A JPS5773618 A JP S5773618A JP 14959880 A JP14959880 A JP 14959880A JP 14959880 A JP14959880 A JP 14959880A JP S5773618 A JPS5773618 A JP S5773618A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- linear displacement
- permanent
- detecting method
- varies
- 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
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
Landscapes
- 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)
Abstract
PURPOSE:To lessen the influence of an external magnetic field and to reduce the thickness of a sensor by detecting linear displacement between a couple of permanent magnets, facing mutually differing in the direction of magnetic poles, by a magnetic resistance element as variations in composite magnetic field. CONSTITUTION:The 1st permanent magnett 8 is fixed to an MR element 7 to apply a magnetic field in parallel to the magnetism-sensitive surface of the MR element 7, and the 2nd permanent magnet 9 is made to fact the 1st permanent magnet 8 differing in the direction of magnetic poles. As the interval between the magnets 8 and 9 is varied, the direction of a composite magnetic field applied to the MR element 7 varies, so the output voltage of the MR element 7 varies.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14959880A JPS5773618A (en) | 1980-10-24 | 1980-10-24 | Linear displacement detecting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14959880A JPS5773618A (en) | 1980-10-24 | 1980-10-24 | Linear displacement detecting method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5773618A true JPS5773618A (en) | 1982-05-08 |
Family
ID=15478698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14959880A Pending JPS5773618A (en) | 1980-10-24 | 1980-10-24 | Linear displacement detecting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5773618A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6435201A (en) * | 1987-07-30 | 1989-02-06 | Akai Electric | Displacement detecting apparatus |
JPS6425706U (en) * | 1987-08-04 | 1989-02-13 | ||
US5477143A (en) * | 1994-01-11 | 1995-12-19 | Honeywell Inc. | Sensor with magnetoresistors disposed on a plane which is parallel to and displaced from the magnetic axis of a permanent magnet |
JP2017161365A (en) * | 2016-03-09 | 2017-09-14 | Tdk株式会社 | Magnet and displacement detector |
-
1980
- 1980-10-24 JP JP14959880A patent/JPS5773618A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6435201A (en) * | 1987-07-30 | 1989-02-06 | Akai Electric | Displacement detecting apparatus |
JPS6425706U (en) * | 1987-08-04 | 1989-02-13 | ||
US5477143A (en) * | 1994-01-11 | 1995-12-19 | Honeywell Inc. | Sensor with magnetoresistors disposed on a plane which is parallel to and displaced from the magnetic axis of a permanent magnet |
JP2017161365A (en) * | 2016-03-09 | 2017-09-14 | Tdk株式会社 | Magnet and displacement detector |
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