JPS648885A - Rotary speed detector - Google Patents

Rotary speed detector

Info

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
Application number
JP62164550A
Other languages
Japanese (ja)
Inventor
Soichiro Fujioka
Hiroshi Okamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP62164550A priority Critical patent/JPS648885A/en
Priority to EP19880305949 priority patent/EP0297869A3/en
Priority to US07/213,620 priority patent/US4891588A/en
Priority to KR1019880008167A priority patent/KR910003829B1/en
Publication of JPS648885A publication Critical patent/JPS648885A/en
Pending legal-status Critical Current

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  • 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.
JP62164550A 1987-07-01 1987-07-01 Rotary speed detector Pending JPS648885A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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