JPS648885A - Rotary speed detector - Google Patents
Rotary speed detectorInfo
- Publication number
- JPS648885A JPS648885A JP62164550A JP16455087A JPS648885A JP S648885 A JPS648885 A JP S648885A JP 62164550 A JP62164550 A JP 62164550A JP 16455087 A JP16455087 A JP 16455087A JP S648885 A JPS648885 A JP S648885A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- delay
- pulse train
- multiplying
- period
- 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
- Control Of Electric Motors In General (AREA)
Abstract
PURPOSE:To relieve phase delay, by constituting an operating means, a delay means and a multiplying means such that they have differentiating characteristics. CONSTITUTION:A pulse generating means 2 outputs first pulse trains according to rotation of a motor. A period measuring means 3 measures period of the first pulse train and applies it to a latch means 4. A pulse generating means 9 provides a second pulse train having the frequency two times as high as that of the first pulse train to a delay means 6. Every time when the second pulse train arrives to the delay means 6, the delay means 6 delays the pulses in the pulse train by single pulse period and provides the pulse to a multiplier 7 for multiplying a predetermined value lower than 1. An operating means 5 subtracts the output from the multiplying means 7 from the output from the latch means 4, and outputs the result as a rotary speed signal for a motor 1. Consequently, phase delay can be relieved, resulting in a high response.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62164550A JPS648885A (en) | 1987-07-01 | 1987-07-01 | Rotary speed detector |
EP19880305949 EP0297869A3 (en) | 1987-07-01 | 1988-06-30 | Apparatus for detecting rotating speed of an object |
US07/213,620 US4891588A (en) | 1987-07-01 | 1988-06-30 | Device for detecting rotation speed having feedback circuitry and improved frequency-response |
KR1019880008167A KR910003829B1 (en) | 1987-07-01 | 1988-07-01 | Revolution speed detecting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62164550A JPS648885A (en) | 1987-07-01 | 1987-07-01 | Rotary speed detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648885A true JPS648885A (en) | 1989-01-12 |
Family
ID=15795289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62164550A Pending JPS648885A (en) | 1987-07-01 | 1987-07-01 | Rotary speed detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648885A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109015628A (en) * | 2017-06-09 | 2018-12-18 | 精工爱普生株式会社 | control device, robot and robot system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6115577A (en) * | 1984-06-29 | 1986-01-23 | Sony Corp | Speed servo circuit |
JPS63298163A (en) * | 1987-05-29 | 1988-12-05 | Matsushita Electric Ind Co Ltd | Rotational speed detector |
-
1987
- 1987-07-01 JP JP62164550A patent/JPS648885A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6115577A (en) * | 1984-06-29 | 1986-01-23 | Sony Corp | Speed servo circuit |
JPS63298163A (en) * | 1987-05-29 | 1988-12-05 | Matsushita Electric Ind Co Ltd | Rotational speed detector |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109015628A (en) * | 2017-06-09 | 2018-12-18 | 精工爱普生株式会社 | control device, robot and robot system |
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