JPS5489657A - Rotating angle detector - Google Patents
Rotating angle detectorInfo
- Publication number
- JPS5489657A JPS5489657A JP16076277A JP16076277A JPS5489657A JP S5489657 A JPS5489657 A JP S5489657A JP 16076277 A JP16076277 A JP 16076277A JP 16076277 A JP16076277 A JP 16076277A JP S5489657 A JPS5489657 A JP S5489657A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- voltage
- rotating
- constant
- circuit
- 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
- 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 resolution and stability by converting the detection outputs of a rotating angle output head to a constant amplitude and multiplying frequencies.
CONSTITUTION: The detection voltage of a rotating angle detecting head 2 by the tooth type magnetic material of a rotor 1 goes through the amplifier 11 of a constant output amplitude control circuit 3 and is made to a DC voltage in a smoothing circuit 12. This voltage is compared in a comparing amplifier 14 in which a reference voltage has been set. The amplification factor of the amplifier is controlled by the comparing output of this amplifier 14 via variable resistor 9 and the signal which is free from any DC noise, is constant in amplitude and whose frequency is proportional to rotating angles is applied to a pulse generator 7 without any effect on the rotating speed of the rotor 1. In this case, the input to the circuit 3 is cut off of high range above a specified range by parallel resistance 9 and capacitor 10, whereby unnecessary AC noises are removed. On the other hand, the detection outputs of the head 2 are integrated in an integrating circuit 4 provided with an amplifier 18 whose amplification factor is controlled via variable resistance 17 in the similar manner, whereby the frequencies proportional to rotating angles are electrically multiplied and are applied to the generator 7. Hence, high-resolution and stable detection may be performed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16076277A JPS5489657A (en) | 1977-12-26 | 1977-12-26 | Rotating angle detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16076277A JPS5489657A (en) | 1977-12-26 | 1977-12-26 | Rotating angle detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5489657A true JPS5489657A (en) | 1979-07-16 |
Family
ID=15721905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16076277A Pending JPS5489657A (en) | 1977-12-26 | 1977-12-26 | Rotating angle detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5489657A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5750608A (en) * | 1980-07-19 | 1982-03-25 | Lucas Industries Ltd | Electromagnetic transducer |
JPH02310424A (en) * | 1989-05-25 | 1990-12-26 | Yokogawa Electric Corp | Signal processor of rotary encoder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5028861A (en) * | 1973-07-16 | 1975-03-24 |
-
1977
- 1977-12-26 JP JP16076277A patent/JPS5489657A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5028861A (en) * | 1973-07-16 | 1975-03-24 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5750608A (en) * | 1980-07-19 | 1982-03-25 | Lucas Industries Ltd | Electromagnetic transducer |
JPH0419491B2 (en) * | 1980-07-19 | 1992-03-30 | Lucas Ind Plc | |
JPH02310424A (en) * | 1989-05-25 | 1990-12-26 | Yokogawa Electric Corp | Signal processor of rotary encoder |
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