GB1237492A - Linear electric positioning device - Google Patents

Linear electric positioning device

Info

Publication number
GB1237492A
GB1237492A GB24814/69A GB2481469A GB1237492A GB 1237492 A GB1237492 A GB 1237492A GB 24814/69 A GB24814/69 A GB 24814/69A GB 2481469 A GB2481469 A GB 2481469A GB 1237492 A GB1237492 A GB 1237492A
Authority
GB
United Kingdom
Prior art keywords
polepiece
coils
permanent magnets
movable
field system
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
GB24814/69A
Other languages
English (en)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1237492A publication Critical patent/GB1237492A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
    • G01P3/505—Devices characterised by the use of electric or magnetic means for measuring linear speed by using eddy currents
    • 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
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Non-Mechanical Conveyors (AREA)
  • Moving Of Heads (AREA)
GB24814/69A 1968-06-17 1969-05-15 Linear electric positioning device Expired GB1237492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73743868A 1968-06-17 1968-06-17

Publications (1)

Publication Number Publication Date
GB1237492A true GB1237492A (en) 1971-06-30

Family

ID=24963927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24814/69A Expired GB1237492A (en) 1968-06-17 1969-05-15 Linear electric positioning device

Country Status (5)

Country Link
US (1) US3470399A (cg-RX-API-DMAC7.html)
JP (1) JPS4923224B1 (cg-RX-API-DMAC7.html)
DE (1) DE1930573A1 (cg-RX-API-DMAC7.html)
FR (1) FR2011040A1 (cg-RX-API-DMAC7.html)
GB (1) GB1237492A (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145269A (en) * 1983-06-30 1985-03-20 Tokico Ltd Magnetic disc memory apparatus

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3577023A (en) * 1969-12-04 1971-05-04 Advanced Peripherals Inc Moving coil actuator
US3610973A (en) * 1970-01-08 1971-10-05 Westinghouse Electric Corp Vibration pickup device
US3654540A (en) * 1971-01-15 1972-04-04 Cavitron Corp Magnetostrictive drive circuit feedback coil
US3721967A (en) * 1971-08-02 1973-03-20 Ibm Head carriage assembly for magnetic disk storage drive
FR2135998A5 (cg-RX-API-DMAC7.html) * 1972-03-08 1972-12-22 Commissariat Energie Atomique
US3816776A (en) * 1972-12-04 1974-06-11 Control Data Corp External magnetic field compensator
US4034411A (en) * 1975-07-11 1977-07-05 International Business Machines Corporation Magnetic disk information storage apparatus
US4394594A (en) * 1975-07-24 1983-07-19 Papst-Motoren Kg Motor with a disk rotor
US4016441A (en) * 1976-05-19 1977-04-05 The Singer Company Linear motor
JPS5452315U (cg-RX-API-DMAC7.html) * 1977-09-17 1979-04-11
US4425534A (en) 1978-12-20 1984-01-10 Pertec Computer Corporation Linear motor velocity sensor
DE7900695U1 (de) * 1979-01-12 1979-07-12 Basf Ag, 6700 Ludwigshafen Vorrichtung zum positionieren von abtastkoepfen in plattenspeichern
WO1980001861A1 (en) * 1979-02-28 1980-09-04 F Moritz Linear actuator
US4260914A (en) * 1979-03-28 1981-04-07 Digital Equipment Corporation Differential linear velocity transducer
DE3121502C2 (de) * 1980-05-31 1985-06-05 Universal Pioneer Corp., Tokio/Tokyo Anordnung zur Führung eines Abtasterschlittens
DE3129212A1 (de) * 1981-07-24 1983-02-10 Basf Ag, 6700 Ludwigshafen Vorrichtung zum positionieren von gegenstaenden geringer masse
DE3334750C2 (de) * 1983-09-26 1986-12-18 Kernforschungsanlage Jülich GmbH, 5170 Jülich Spulensystem zur induktiven Abtastung der Bewegungsgeschwindigkeit eines magnetisierten Körpers
US4652779A (en) * 1984-10-30 1987-03-24 Magnetic Peripherals Inc. Center pole for rotary actuator coil with lowered inductance
EP1619670B1 (en) * 1993-12-15 2009-09-30 Seagate Removable Storage Solutions LLC Voice coil driven positioner for coarse and fine positioning of magnetic head in multi-track tape driver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2296754A (en) * 1939-04-29 1942-09-22 Texas Co Astatic electromagnetic vibration detector
US2289962A (en) * 1939-05-06 1942-07-14 Gen Electric Vibration device
NL299868A (cg-RX-API-DMAC7.html) * 1960-01-04
US3260870A (en) * 1962-12-28 1966-07-12 Ibm Magnetic detent mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145269A (en) * 1983-06-30 1985-03-20 Tokico Ltd Magnetic disc memory apparatus

Also Published As

Publication number Publication date
US3470399A (en) 1969-09-30
JPS4923224B1 (cg-RX-API-DMAC7.html) 1974-06-14
DE1930573A1 (de) 1970-04-02
FR2011040A1 (cg-RX-API-DMAC7.html) 1970-02-27

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