JPS5642108A - Detector for rotational position - Google Patents
Detector for rotational positionInfo
- Publication number
- JPS5642108A JPS5642108A JP11738779A JP11738779A JPS5642108A JP S5642108 A JPS5642108 A JP S5642108A JP 11738779 A JP11738779 A JP 11738779A JP 11738779 A JP11738779 A JP 11738779A JP S5642108 A JPS5642108 A JP S5642108A
- Authority
- JP
- Japan
- Prior art keywords
- sensors
- signal
- tooth
- detected
- reference position
- 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
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Control Of Position Or Direction (AREA)
Abstract
PURPOSE: To simplify the structure, reduce the size and maintain the detecting precision for a prolonged time period by a method wherein tooth-shaped projections and a projection-free portion are provided on a single rotary disc, and two-phase signals are detected by two magnetic reluctance element sensors.
CONSTITUTION: The tooth-shaped projections 2 are provided at pitches (a) on the outside periphery of the rotary disc 1 made of magnetic material, and the projction- free portion 3 is provided at the portion corresponding to the reference position of a rotary shaft 1A. The magnetic reluctance element sensors 4A, 4B are located at predetermined pitch from each other. The two-phase voltage waveforms having a phase difference are obtained by the sensors 4A, 4B. The outputs of the sensors 4A, 4B are subjected to wave shaping by comparators 8A, 8B, the resulting main signal MS and sub-signal SS are arithmetically operated in a logical circuit 9, and the rotational position can be detected through the reference position signal ZRS and the compensated rotation angle signal CMS. Accordingly, the structure is simplified, the size is reduced, and the detection precision is maintained for a prolonged period of time.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11738779A JPS5642108A (en) | 1979-09-14 | 1979-09-14 | Detector for rotational position |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11738779A JPS5642108A (en) | 1979-09-14 | 1979-09-14 | Detector for rotational position |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5642108A true JPS5642108A (en) | 1981-04-20 |
Family
ID=14710381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11738779A Pending JPS5642108A (en) | 1979-09-14 | 1979-09-14 | Detector for rotational position |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5642108A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6228116U (en) * | 1985-08-05 | 1987-02-20 | ||
JPS6416919A (en) * | 1987-07-10 | 1989-01-20 | Matsushita Electric Ind Co Ltd | Rotational angle detector |
JPS6416922A (en) * | 1987-07-10 | 1989-01-20 | Matsushita Electric Ind Co Ltd | Rotational angle detector |
JPH08338851A (en) * | 1995-04-11 | 1996-12-24 | Nippondenso Co Ltd | Magnetic detector |
JP2010515032A (en) * | 2006-12-27 | 2010-05-06 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Method of incrementally determining shaft rotation angle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248379A (en) * | 1975-10-15 | 1977-04-18 | Sanyo Electric Co Ltd | Speed detecting device |
JPS5462875A (en) * | 1977-10-28 | 1979-05-21 | Tdk Corp | Angle signal detector |
JPS5485755A (en) * | 1977-12-20 | 1979-07-07 | Matsushita Electric Ind Co Ltd | Rotating angle detector |
-
1979
- 1979-09-14 JP JP11738779A patent/JPS5642108A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248379A (en) * | 1975-10-15 | 1977-04-18 | Sanyo Electric Co Ltd | Speed detecting device |
JPS5462875A (en) * | 1977-10-28 | 1979-05-21 | Tdk Corp | Angle signal detector |
JPS5485755A (en) * | 1977-12-20 | 1979-07-07 | Matsushita Electric Ind Co Ltd | Rotating angle detector |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6228116U (en) * | 1985-08-05 | 1987-02-20 | ||
JPS6416919A (en) * | 1987-07-10 | 1989-01-20 | Matsushita Electric Ind Co Ltd | Rotational angle detector |
JPS6416922A (en) * | 1987-07-10 | 1989-01-20 | Matsushita Electric Ind Co Ltd | Rotational angle detector |
JPH08338851A (en) * | 1995-04-11 | 1996-12-24 | Nippondenso Co Ltd | Magnetic detector |
JP2010515032A (en) * | 2006-12-27 | 2010-05-06 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Method of incrementally determining shaft rotation angle |
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