FR2405582A1 - Prodn. unit for relative rotation between two objects - has stator with electromagnets generating rotating field and relies on phase-shift effect - Google Patents

Prodn. unit for relative rotation between two objects - has stator with electromagnets generating rotating field and relies on phase-shift effect

Info

Publication number
FR2405582A1
FR2405582A1 FR7730041A FR7730041A FR2405582A1 FR 2405582 A1 FR2405582 A1 FR 2405582A1 FR 7730041 A FR7730041 A FR 7730041A FR 7730041 A FR7730041 A FR 7730041A FR 2405582 A1 FR2405582 A1 FR 2405582A1
Authority
FR
France
Prior art keywords
objects
relative rotation
prodn
relies
stator
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.)
Granted
Application number
FR7730041A
Other languages
French (fr)
Other versions
FR2405582B1 (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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to FR7730041A priority Critical patent/FR2405582A1/en
Publication of FR2405582A1 publication Critical patent/FR2405582A1/en
Application granted granted Critical
Publication of FR2405582B1 publication Critical patent/FR2405582B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/18—Means for stabilising antennas on an unstable platform
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
    • 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
    • H02K41/025—Asynchronous motors
    • 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)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Linear Motors (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

One (9) of the two objects has a surface which is partly and at least approx. spherical. The other object has a number of electromagnetic devices (4-6) positioned on a circle and, when energised generate lines of forces which intersect the surface of the first object (9). Inductance coils (12-14) generate ac for supply of the electromagnetic units (4-6) with a phase shift between each pair of units so that a relative rotation between the two objects is induced about an axis (7) passing through the circuit. Holding devices control lateral relative movement between the two objects.
FR7730041A 1977-10-06 1977-10-06 Prodn. unit for relative rotation between two objects - has stator with electromagnets generating rotating field and relies on phase-shift effect Granted FR2405582A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7730041A FR2405582A1 (en) 1977-10-06 1977-10-06 Prodn. unit for relative rotation between two objects - has stator with electromagnets generating rotating field and relies on phase-shift effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7730041A FR2405582A1 (en) 1977-10-06 1977-10-06 Prodn. unit for relative rotation between two objects - has stator with electromagnets generating rotating field and relies on phase-shift effect

Publications (2)

Publication Number Publication Date
FR2405582A1 true FR2405582A1 (en) 1979-05-04
FR2405582B1 FR2405582B1 (en) 1980-04-25

Family

ID=9196156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730041A Granted FR2405582A1 (en) 1977-10-06 1977-10-06 Prodn. unit for relative rotation between two objects - has stator with electromagnets generating rotating field and relies on phase-shift effect

Country Status (1)

Country Link
FR (1) FR2405582A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005996A2 (en) * 1987-02-17 1988-08-25 Martin Marietta Corporation Triaxis stabilized platform

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005996A2 (en) * 1987-02-17 1988-08-25 Martin Marietta Corporation Triaxis stabilized platform
WO1988005996A3 (en) * 1987-02-17 1988-09-22 Martin Marietta Corp Triaxis stabilized platform
US4828376A (en) * 1987-02-17 1989-05-09 Martin Marietta Corporation Triaxis stabilized platform
JPH01502293A (en) * 1987-02-17 1989-08-10 マーチン・マリエッタ・コーポレーション 3-axis stable platform

Also Published As

Publication number Publication date
FR2405582B1 (en) 1980-04-25

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Legal Events

Date Code Title Description
ST Notification of lapse