JPS5542062A - Speed detection system - Google Patents

Speed detection system

Info

Publication number
JPS5542062A
JPS5542062A JP11565178A JP11565178A JPS5542062A JP S5542062 A JPS5542062 A JP S5542062A JP 11565178 A JP11565178 A JP 11565178A JP 11565178 A JP11565178 A JP 11565178A JP S5542062 A JPS5542062 A JP S5542062A
Authority
JP
Japan
Prior art keywords
signal
signals
speed
regulates
detecting
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
JP11565178A
Other languages
Japanese (ja)
Inventor
Yasuaki Yamada
Toshiaki Ozawa
Hiroatsu Kondo
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP11565178A priority Critical patent/JPS5542062A/en
Priority to US06/069,927 priority patent/US4315200A/en
Priority to DE2934775A priority patent/DE2934775C2/en
Publication of JPS5542062A publication Critical patent/JPS5542062A/en
Priority to US06/285,922 priority patent/US4511830A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain an instantaneous speed signal which is positive or negative depending on the direction of motion of a moving body, by generating a signal of frequency corresponding to the speed of the moving body and by detecting the change in the signal within a prescribed time and the direction of motion.
CONSTITUTION: When a motor is rotating, signals different in phase by 90° from each other are generated by an encoder PSG and amplified at AMP1, AMP2. The amplified signals are shaped to rectangular waves at VC1, VC2. The rectangular waves and the output of a direction detecting circuit WD are applied to a logical control circuit LCC, which regulates switches SW1WSW4, regulates another switch SW5 by the same signal as a position pulse signal and regulates still another switch SW6 by a signal delayed by a prescribed time in comparison with the signal for the switch SW5 to hold speed detecting signals at C1, C2. The difference between both the sampled and held signals is detected, thereby producing the speed signal.
COPYRIGHT: (C)1980,JPO&Japio
JP11565178A 1978-08-29 1978-09-20 Speed detection system Pending JPS5542062A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP11565178A JPS5542062A (en) 1978-09-20 1978-09-20 Speed detection system
US06/069,927 US4315200A (en) 1978-08-29 1979-08-27 Servo control apparatus
DE2934775A DE2934775C2 (en) 1978-08-29 1979-08-28 Servo positioning system
US06/285,922 US4511830A (en) 1978-08-29 1981-07-23 Servo control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11565178A JPS5542062A (en) 1978-09-20 1978-09-20 Speed detection system

Publications (1)

Publication Number Publication Date
JPS5542062A true JPS5542062A (en) 1980-03-25

Family

ID=14667907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11565178A Pending JPS5542062A (en) 1978-08-29 1978-09-20 Speed detection system

Country Status (1)

Country Link
JP (1) JPS5542062A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015844A1 (en) * 1991-03-11 1992-09-17 Mts Systems Corporation Emulated encoder output magnetostrictive position transducer
US5206586A (en) * 1991-03-11 1993-04-27 Mts Systems Corporation Magnetostrictive position transducer having square-wave-in-quadrature-output
US5345171A (en) * 1993-01-11 1994-09-06 Caterpillar Inc. Apparatus including a selectively connectable isolation transformer for determining the speed and direction of a rotating object

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4996779A (en) * 1973-01-17 1974-09-12
JPS5113381A (en) * 1974-06-17 1976-02-02 Chevron Res KOTAI HANNOZAINOSAISEIHOHO
JPS5123613A (en) * 1974-08-21 1976-02-25 Hitachi Ltd Dendokino sokudokenshutsusochi
JPS5518943A (en) * 1978-07-28 1980-02-09 Ricoh Co Ltd Speed detector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4996779A (en) * 1973-01-17 1974-09-12
JPS5113381A (en) * 1974-06-17 1976-02-02 Chevron Res KOTAI HANNOZAINOSAISEIHOHO
JPS5123613A (en) * 1974-08-21 1976-02-25 Hitachi Ltd Dendokino sokudokenshutsusochi
JPS5518943A (en) * 1978-07-28 1980-02-09 Ricoh Co Ltd Speed detector

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015844A1 (en) * 1991-03-11 1992-09-17 Mts Systems Corporation Emulated encoder output magnetostrictive position transducer
US5206586A (en) * 1991-03-11 1993-04-27 Mts Systems Corporation Magnetostrictive position transducer having square-wave-in-quadrature-output
US5345171A (en) * 1993-01-11 1994-09-06 Caterpillar Inc. Apparatus including a selectively connectable isolation transformer for determining the speed and direction of a rotating object

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