JPS57178109A - Rotating angle detector - Google Patents
Rotating angle detectorInfo
- Publication number
- JPS57178109A JPS57178109A JP56064559A JP6455981A JPS57178109A JP S57178109 A JPS57178109 A JP S57178109A JP 56064559 A JP56064559 A JP 56064559A JP 6455981 A JP6455981 A JP 6455981A JP S57178109 A JPS57178109 A JP S57178109A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- projecting parts
- magnet plate
- output
- angles
- 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
- 230000004304 visual acuity Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
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
- G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
- G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
- G01D2205/77—Specific profiles
- G01D2205/771—Toothed profiles
- G01D2205/772—Sawtooth profiles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Linear Or Angular Velocity Measurement And Their Indicating Devices (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE:To detect rotating angles with high resolving power by rotating a magnet plate and detecting the rotating angles from the change in the output of a magnetic angle detecting element during the time when the projecting parts or the like of the circumferential part pass near said element. CONSTITUTION:A magnet plate 15 is a discoidal plate magnetized in its axial direction, and is projected in one body with three asymmetrical projecting parts 18 of an approximately triangular shape at 120 deg. intervals on its outside circumferential surface 17. A magnetic angle detecting element 16 is formed of two MR stripes 20, 21 having a magnetoresistance effect such as iron-nickel thin films on an insulation substrate 19 in mutually orthogonal patterns. The output voltage V of the element 16 assumes an approximately triangular waveform corresponding to the shape of the parts 18 at every 120 deg. rotation of the plate 15. Since only the angles near the limited ones within 360 deg. in one revolution are locally detected with the projecting parts or the like partially formed on the circumferential surface of the magnet plate from the change in the output of the element 16, they are detected with high resolving power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56064559A JPS57178109A (en) | 1981-04-27 | 1981-04-27 | Rotating angle detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56064559A JPS57178109A (en) | 1981-04-27 | 1981-04-27 | Rotating angle detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57178109A true JPS57178109A (en) | 1982-11-02 |
Family
ID=13261702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56064559A Pending JPS57178109A (en) | 1981-04-27 | 1981-04-27 | Rotating angle detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57178109A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005345192A (en) * | 2004-06-01 | 2005-12-15 | Advics:Kk | Moving velocity detector and its detection circuit |
| JP2016004039A (en) * | 2014-06-17 | 2016-01-12 | インフィネオン テクノロジーズ アーゲーＩｎｆｉｎｅｏｎ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ａｇ | Rotation sensor |
-
1981
- 1981-04-27 JP JP56064559A patent/JPS57178109A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005345192A (en) * | 2004-06-01 | 2005-12-15 | Advics:Kk | Moving velocity detector and its detection circuit |
| JP2016004039A (en) * | 2014-06-17 | 2016-01-12 | インフィネオン テクノロジーズ アーゲーＩｎｆｉｎｅｏｎ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ａｇ | Rotation sensor |
| US10222234B2 (en) | 2014-06-17 | 2019-03-05 | Infineon Technologies Ag | Rotation sensor |
| US10718633B2 (en) | 2014-06-17 | 2020-07-21 | Infineon Technologies Ag | Rotation sensor |
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