GB1381125A - Linear motors and positioning systems - Google Patents

Linear motors and positioning systems

Info

Publication number
GB1381125A
GB1381125A GB2986872A GB2986872A GB1381125A GB 1381125 A GB1381125 A GB 1381125A GB 2986872 A GB2986872 A GB 2986872A GB 2986872 A GB2986872 A GB 2986872A GB 1381125 A GB1381125 A GB 1381125A
Authority
GB
United Kingdom
Prior art keywords
head
pick
combined
actuator
circuit
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.)
Expired
Application number
GB2986872A
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.)
Xynetics Inc
Original Assignee
Xynetics 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 Xynetics Inc filed Critical Xynetics Inc
Publication of GB1381125A publication Critical patent/GB1381125A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • 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
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/1418—Control of position or direction using feedback using an analogue comparing device with ac amplifier chain
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/18—Machines moving with multiple degrees of freedom

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position Or Direction (AREA)
  • Control Of Linear Motors (AREA)
  • Linear Motors (AREA)

Abstract

1381125 Automatic control of position XYNETICS Inc 26 June 1972 [28 June 1971 ] 29868/72 Heading G3N [Also in Division H2] In a servo-control system for positioning a head 11 (see Division H2) which is movable over a platen 15, Fig.1 (not shown), phase displaced output signals from a position pick-off 36 in the head are combined with position command signals to produce an error signal which is combined with the pick-off output signals to produce phase displaced signals for energizing an actuator 20a, 20b in the head. The circuit shown is for movement of the head along a single axis. As shown, the error signal is combined in multipliers 84, 85 with the demodulated outputs of the pickoff, the multiplier outputs then being fed through driver amplifiers 90, 91 to the coils of the actuator. The demodulated pick-off outputs may be stored in digital form (in digitizer 99) for future use. The circuit of Fig.5 (not shown) forms part of an x-y plotter, separate circuits similar to that of Fig.4 being included for controlling movement of the head along the two axes. The Fig.5 (not shown) circuit also includes further components, associated with the x-axis pick-off and actuator coils, for preventing rotation of the head about an axis perpendicular to the platen surface.
GB2986872A 1971-06-28 1972-06-26 Linear motors and positioning systems Expired GB1381125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15710071A 1971-06-28 1971-06-28

Publications (1)

Publication Number Publication Date
GB1381125A true GB1381125A (en) 1975-01-22

Family

ID=22562337

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2986872A Expired GB1381125A (en) 1971-06-28 1972-06-26 Linear motors and positioning systems

Country Status (4)

Country Link
JP (1) JPS5248272B1 (en)
CA (1) CA1023454A (en)
DE (2) DE2265207A1 (en)
GB (1) GB1381125A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2273166A (en) * 1989-09-05 1994-06-08 Kelly H P G Linear motor with position and direction of motion sensor.
GB2305518A (en) * 1995-09-26 1997-04-09 Custom Dev Ltd Drive and control means for linear electromagnetic motor/actuator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016873A1 (en) * 1979-04-04 1980-10-15 ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI (ACEC) Société Anonyme A device for changing the position of a solar energy collecting panel
DE2945269A1 (en) * 1979-11-09 1981-05-21 Teldix Gmbh, 6900 Heidelberg Hardware item positioning unit - has permanent magnet layer positioned on drive part and uses stator with crossing windings
DE19531520A1 (en) * 1995-07-20 1997-01-23 Heisel Uwe Prof Dr Ing Dr H C Device for positioning and fixing bodies
DE19807085B4 (en) * 1997-02-20 2005-06-23 Dreifke, Lars, Dr.-Ing. Direct drive with internal sensors and control device
DE102005045374A1 (en) * 2005-09-22 2007-04-05 Siemens Ag Measuring device with a measuring head for determining the position of a primary part on a secondary part and method for determining the position of a primary part on a secondary part with a measuring head

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2273166A (en) * 1989-09-05 1994-06-08 Kelly H P G Linear motor with position and direction of motion sensor.
GB2273166B (en) * 1989-09-05 1994-08-31 Kelly H P G Improvements in or relating to the control of linear motors
GB2305518A (en) * 1995-09-26 1997-04-09 Custom Dev Ltd Drive and control means for linear electromagnetic motor/actuator
GB2305518B (en) * 1995-09-26 1999-11-03 Custom Dev Ltd Electronic actuator position control
US6031350A (en) * 1995-09-26 2000-02-29 Sidey; Roger Charles Hey Position control and monitoring circuit and method for an electric motor

Also Published As

Publication number Publication date
DE2232334A1 (en) 1973-01-11
DE2265207A1 (en) 1977-02-03
DE2232334C3 (en) 1979-08-09
JPS5248272B1 (en) 1977-12-08
CA1023454A (en) 1977-12-27
DE2232334B2 (en) 1978-12-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee