JPS54138474A - Speed detecting method - Google Patents
Speed detecting methodInfo
- Publication number
- JPS54138474A JPS54138474A JP4607378A JP4607378A JPS54138474A JP S54138474 A JPS54138474 A JP S54138474A JP 4607378 A JP4607378 A JP 4607378A JP 4607378 A JP4607378 A JP 4607378A JP S54138474 A JPS54138474 A JP S54138474A
- Authority
- JP
- Japan
- Prior art keywords
- outputs
- encoder
- detecting method
- speed detecting
- differentiated
- 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.)
- Granted
Links
Landscapes
- Control Of Velocity Or Acceleration (AREA)
Abstract
PURPOSE: To obtain the voltage proportional to speed by time-differentiating both or one of the outputs of an encoder and performing arithmetic processing.
CONSTITUTION: An optical shaft encoder 1 provided with two solar batteries 6A and 6B output the sine waveform voltages e1, e2 having mutually phase differences of π/2rad. The outputs e1, e2 of the encoder are differentiated by a differentiating circuit 10 and the differentiated results are squared in square circuits 11. The outputs of the square circuits 11A and 11B are added in an adder 12.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4607378A JPS5918665B2 (en) | 1978-04-19 | 1978-04-19 | Speed detection method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4607378A JPS5918665B2 (en) | 1978-04-19 | 1978-04-19 | Speed detection method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54138474A true JPS54138474A (en) | 1979-10-26 |
JPS5918665B2 JPS5918665B2 (en) | 1984-04-28 |
Family
ID=12736807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4607378A Expired JPS5918665B2 (en) | 1978-04-19 | 1978-04-19 | Speed detection method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5918665B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5520529A (en) * | 1978-07-31 | 1980-02-14 | Hitachi Ltd | Speed control unit |
JPS59142601A (en) * | 1983-02-03 | 1984-08-15 | Fujitsu Ten Ltd | Level discrimination processing system |
-
1978
- 1978-04-19 JP JP4607378A patent/JPS5918665B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5520529A (en) * | 1978-07-31 | 1980-02-14 | Hitachi Ltd | Speed control unit |
JPS59142601A (en) * | 1983-02-03 | 1984-08-15 | Fujitsu Ten Ltd | Level discrimination processing system |
Also Published As
Publication number | Publication date |
---|---|
JPS5918665B2 (en) | 1984-04-28 |
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