FR2223963A5 - Ultra-low frequency vibration generator - has opposed linear motors with common armature and variable three-phase current - Google Patents

Ultra-low frequency vibration generator - has opposed linear motors with common armature and variable three-phase current

Info

Publication number
FR2223963A5
FR2223963A5 FR7307803A FR7307803A FR2223963A5 FR 2223963 A5 FR2223963 A5 FR 2223963A5 FR 7307803 A FR7307803 A FR 7307803A FR 7307803 A FR7307803 A FR 7307803A FR 2223963 A5 FR2223963 A5 FR 2223963A5
Authority
FR
France
Prior art keywords
armature
variable
phase current
linear motors
ultra
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
FR7307803A
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR7307803A priority Critical patent/FR2223963A5/en
Application granted granted Critical
Publication of FR2223963A5 publication Critical patent/FR2223963A5/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
    • G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Linear Motors (AREA)

Abstract

Two linear motors have identical field windings with the same air gap axis, while the armature is common to them for a length at least equal to the winding centre distance, and moves along the common axis under an adjustable voltage. Each winding is supplied with variable three-phase current, so that the motors exert opposite forces on the armature. On each armature oscillation the energy lost by the dampening of its movement is restored, typically by a third linear motor, between the first two and coaxial to them, and supplied with variable voltage during the natural half-cycle of the armature oscillatory movement.
FR7307803A 1973-03-05 1973-03-05 Ultra-low frequency vibration generator - has opposed linear motors with common armature and variable three-phase current Expired FR2223963A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7307803A FR2223963A5 (en) 1973-03-05 1973-03-05 Ultra-low frequency vibration generator - has opposed linear motors with common armature and variable three-phase current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7307803A FR2223963A5 (en) 1973-03-05 1973-03-05 Ultra-low frequency vibration generator - has opposed linear motors with common armature and variable three-phase current

Publications (1)

Publication Number Publication Date
FR2223963A5 true FR2223963A5 (en) 1974-10-25

Family

ID=9115787

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7307803A Expired FR2223963A5 (en) 1973-03-05 1973-03-05 Ultra-low frequency vibration generator - has opposed linear motors with common armature and variable three-phase current

Country Status (1)

Country Link
FR (1) FR2223963A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102230821A (en) * 2011-04-11 2011-11-02 浙江大学 Method for rapidly adjusting vibration level of ultralow-frequency vibration table

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102230821A (en) * 2011-04-11 2011-11-02 浙江大学 Method for rapidly adjusting vibration level of ultralow-frequency vibration table
CN102230821B (en) * 2011-04-11 2012-11-07 浙江大学 Method for rapidly adjusting vibration level of ultralow-frequency vibration table

Similar Documents

Publication Publication Date Title
US4583027A (en) Moving magnet linear motor
GB1366229A (en) Alternating current generators
GB1500798A (en) Electrical inductor machines
US3089992A (en) Precision frequency control
US2351623A (en) Oscillating electric motor
FR2223963A5 (en) Ultra-low frequency vibration generator - has opposed linear motors with common armature and variable three-phase current
ES299136A1 (en) Driving device containing a first and a second electrodynamic system
US2413340A (en) Torsional vibratory electric motor
GB1396692A (en) Synchronous linear electric motor
US3991351A (en) Brushless A.C. synchronous motors
US2598232A (en) Oscillation generator
US1606764A (en) Speed regulation
GB1051591A (en) Alternating current generator
SU1083300A1 (en) Vibrodrive
GB933920A (en) Electrical device for obtaining a rectilinear movement of a guided body
SU414686A1 (en) NON-CONTACT ELECTRIC MACHINE UNIT OF STABLE FREQUENCY
SU82849A1 (en) Electrical engine
GB868400A (en) Alternating current generating system
GB938703A (en) Rotary electrical frequency converters
GB957698A (en) A synchronous electrical generator
FR2316777A1 (en) Sync. motor for fine control of stepping motors - has variable air gap and multipole stator
GB824211A (en) Improvements relating to low frequency electrical generators
ES407525A1 (en) Electric vibrator motor
GB873026A (en) Variable-frequency asynchronous generator system
GB1243657A (en) Improvements in and relating to rotating field motors for single-phase operation

Legal Events

Date Code Title Description
ST Notification of lapse