JPS5483873A - Rotational direction detector - Google Patents
Rotational direction detectorInfo
- Publication number
- JPS5483873A JPS5483873A JP15068277A JP15068277A JPS5483873A JP S5483873 A JPS5483873 A JP S5483873A JP 15068277 A JP15068277 A JP 15068277A JP 15068277 A JP15068277 A JP 15068277A JP S5483873 A JPS5483873 A JP S5483873A
- Authority
- JP
- Japan
- Prior art keywords
- rotational direction
- positive
- output
- negative
- voltage
- 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
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
PURPOSE: To make it possible to detect the rotational direction of a rotary body, while reducing the cost, with the use of a simple construction by using a rotational direction detecting generator which is operative to generate such an AC voltage having symmetrical waveforms as has its positive and negative peak values reversed in accordance with the rotational direction of the rotary body.
CONSTITUTION: The output terminals X and Y of asymmetric waveform generator 10 of rotary magnet type are connected in parallel with positive and negative voltage detecting circuits 16 and 22, which are composed of a diode and a charging capacitor. A comparing amplifier 24 compares the respective output voltages of the detecting circuits 16 and 22 to generate compared output signals. In case, for instance, the rotary magnet 28 of the asymmetrical waveform generator 10 is turned in the direction of arrow A, positive and negative voltages are alternately generated at the output terminal X and Y of the generator 10. However, a negative output voltage is generated between the output terminals Z-Y of the comparing amplifier 24. In case the rotary magnet 28 is turned in the direction of arrow B, a positive output voltage is generated at the output terminal of the amplifier 24 to make it possible to detect that the rotational direction is reversed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15068277A JPS5483873A (en) | 1977-12-16 | 1977-12-16 | Rotational direction detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15068277A JPS5483873A (en) | 1977-12-16 | 1977-12-16 | Rotational direction detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5483873A true JPS5483873A (en) | 1979-07-04 |
Family
ID=15502156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15068277A Pending JPS5483873A (en) | 1977-12-16 | 1977-12-16 | Rotational direction detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5483873A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS618823U (en) * | 1984-06-21 | 1986-01-20 | シ−ケ−デイコントロ−ルズ株式会社 | Flowmeter |
-
1977
- 1977-12-16 JP JP15068277A patent/JPS5483873A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS618823U (en) * | 1984-06-21 | 1986-01-20 | シ−ケ−デイコントロ−ルズ株式会社 | Flowmeter |
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