JPS56121108A - Positioning method - Google Patents

Positioning method

Info

Publication number
JPS56121108A
JPS56121108A JP2356180A JP2356180A JPS56121108A JP S56121108 A JPS56121108 A JP S56121108A JP 2356180 A JP2356180 A JP 2356180A JP 2356180 A JP2356180 A JP 2356180A JP S56121108 A JPS56121108 A JP S56121108A
Authority
JP
Japan
Prior art keywords
encoder
positioning
motor
controlled
fine positioning
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
JP2356180A
Other languages
Japanese (ja)
Inventor
Suminori Inoue
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2356180A priority Critical patent/JPS56121108A/en
Publication of JPS56121108A publication Critical patent/JPS56121108A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/20—Control of position or direction using feedback using a digital comparing device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To improve the precision of a positioning device which uses a DC motor by performing rough positioning by an encoder pulse and fine positioning by an encoder waveform. CONSTITUTION:An encoder pulse outputted from encoder circuit 8 is supplied to adding-subtracting counter 1 via optical encoder 6 connected direct to DC servomotor 5. Until the counter 1 to which an encoder pulse up to a target positioning point is set counts down to zero, motor 5 is controlled for rough positioning. Next, phases of mutually 90 deg. out-of-phase sine-wave signals from encoder 6 are selected and motor 5 is controlled to hold the voltage of the selected signal at the earth potential, thereby performing fine positioning. Thus, the fine positioning can be performed even when an optical encoder of relatively low resolution is in use.
JP2356180A 1980-02-27 1980-02-27 Positioning method Pending JPS56121108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2356180A JPS56121108A (en) 1980-02-27 1980-02-27 Positioning method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2356180A JPS56121108A (en) 1980-02-27 1980-02-27 Positioning method

Publications (1)

Publication Number Publication Date
JPS56121108A true JPS56121108A (en) 1981-09-22

Family

ID=12113921

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2356180A Pending JPS56121108A (en) 1980-02-27 1980-02-27 Positioning method

Country Status (1)

Country Link
JP (1) JPS56121108A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263685A2 (en) * 1986-10-06 1988-04-13 Sharp Kabushiki Kaisha Extra magnetic field positioning apparatus
JPS63132315A (en) * 1986-11-25 1988-06-04 Amada Metrecs Co Ltd Servo controller
JPH01122375A (en) * 1987-11-04 1989-05-15 Hitachi Ltd Controlling method for piezoelectric motor
EP0348165A2 (en) * 1988-06-21 1989-12-27 Sony Corporation Disc recording and/or reproducing apparatus
US5179482A (en) * 1988-06-21 1993-01-12 Sony Corporation Disk drive with optical encoder having integral scale member
JP2005141343A (en) * 2003-11-05 2005-06-02 Yaskawa Electric Corp Positioning controller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139379A (en) * 1974-09-30 1976-04-01 Hitachi Ltd Deijitarusaabokeino fuiidobatsukushingohatsuseikairo
JPS53105683A (en) * 1977-02-28 1978-09-13 Fujitsu Ltd Positioning system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139379A (en) * 1974-09-30 1976-04-01 Hitachi Ltd Deijitarusaabokeino fuiidobatsukushingohatsuseikairo
JPS53105683A (en) * 1977-02-28 1978-09-13 Fujitsu Ltd Positioning system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0263685A2 (en) * 1986-10-06 1988-04-13 Sharp Kabushiki Kaisha Extra magnetic field positioning apparatus
JPS63132315A (en) * 1986-11-25 1988-06-04 Amada Metrecs Co Ltd Servo controller
JPH01122375A (en) * 1987-11-04 1989-05-15 Hitachi Ltd Controlling method for piezoelectric motor
JPH0732610B2 (en) * 1987-11-04 1995-04-10 株式会社日立製作所 Piezoelectric motor control method
EP0348165A2 (en) * 1988-06-21 1989-12-27 Sony Corporation Disc recording and/or reproducing apparatus
US5179482A (en) * 1988-06-21 1993-01-12 Sony Corporation Disk drive with optical encoder having integral scale member
JP2005141343A (en) * 2003-11-05 2005-06-02 Yaskawa Electric Corp Positioning controller
JP4492095B2 (en) * 2003-11-05 2010-06-30 株式会社安川電機 Positioning control device

Similar Documents

Publication Publication Date Title
NL7612270A (en) PROCESS FOR PREPARATION OF CARBONIUM EPO XY RESIN.
CH644243B (en) DEVICE FOR MEASURING THE RUN TIME OF ELECTRIC PULSE SIGNALS.
JPS56121108A (en) Positioning method
BE829868A (en) PROCESS FOR THE SEPARATION OF HYDROXY-2 NAPHTHALENE-CARBOXYLIC ACIDS
DE3067334D1 (en) Apparatus for measuring and evaluating the peak values of a pulsatory voltage signal
JPS5619404A (en) Arithmetic unit for deviation from track
JPS5263774A (en) Sample pulse generator
JPS51137822A (en) Speed control system for d-c motor
JPS5335113A (en) Motor speed control
SU622195A1 (en) Technical frequency generator
JPS5425130A (en) Driving system of revolving magnetic field generating coil for magnetic bubble
JPS5454002A (en) Tone arm driving device
SU934492A1 (en) Multiplying device
SU566132A1 (en) Method of checking the accuracy of angle-measuring dials
JPS5228361A (en) Physical quantity detecting circuit
JPS5654119A (en) Sweep voltage generator
JPS54160981A (en) Digital positioning controller
JPS5384114A (en) Dc motor r.p.m. control
JPS5467473A (en) Surface potentiometer
ES460206A1 (en) Voltage to rate converter circuit
JPS5378814A (en) Controller for ratational speed
JPS5226415A (en) Control system for dc motor
JPS5252608A (en) Revolving phase control device of rotating body
JPS5479417A (en) Inverter control circuit for motor driveng
JPS51134672A (en) Travelling distance counter for automobile