FR2011040A1 - - Google Patents

Info

Publication number
FR2011040A1
FR2011040A1 FR6912343A FR6912343A FR2011040A1 FR 2011040 A1 FR2011040 A1 FR 2011040A1 FR 6912343 A FR6912343 A FR 6912343A FR 6912343 A FR6912343 A FR 6912343A FR 2011040 A1 FR2011040 A1 FR 2011040A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6912343A
Other languages
French (fr)
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 FR2011040A1 publication Critical patent/FR2011040A1/fr
Withdrawn legal-status Critical Current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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Moving Of Heads (AREA)
  • Linear Motors (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Non-Mechanical Conveyors (AREA)
FR6912343A 1968-06-17 1969-04-29 Withdrawn FR2011040A1 (https=)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR2011040A1 true FR2011040A1 (https=) 1970-02-27

Family

ID=24963927

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6912343A Withdrawn FR2011040A1 (https=) 1968-06-17 1969-04-29

Country Status (5)

Country Link
US (1) US3470399A (https=)
JP (1) JPS4923224B1 (https=)
DE (1) DE1930573A1 (https=)
FR (1) FR2011040A1 (https=)
GB (1) GB1237492A (https=)

Families Citing this family (20)

* 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 (https=) * 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 (https=) * 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
JPS56500437A (https=) * 1979-02-28 1981-04-02
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
JPS6010467A (ja) * 1983-06-30 1985-01-19 Tokico Ltd 磁気デイスク記憶装置
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
EP0734569A1 (en) * 1993-12-15 1996-10-02 Seagate Technology, Inc. Voice coil driven positioner for coarse and fine positioning of magnetic head in multi-track tape drive

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 (https=) * 1960-01-04
US3260870A (en) * 1962-12-28 1966-07-12 Ibm Magnetic detent mechanism

Also Published As

Publication number Publication date
GB1237492A (en) 1971-06-30
US3470399A (en) 1969-09-30
DE1930573A1 (de) 1970-04-02
JPS4923224B1 (https=) 1974-06-14

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Legal Events

Date Code Title Description
ST Notification of lapse