FR2520549B1 - Bobine d'electro-aimant a champ uniforme, munie d'ouvertures - Google Patents

Bobine d'electro-aimant a champ uniforme, munie d'ouvertures

Info

Publication number
FR2520549B1
FR2520549B1 FR8301084A FR8301084A FR2520549B1 FR 2520549 B1 FR2520549 B1 FR 2520549B1 FR 8301084 A FR8301084 A FR 8301084A FR 8301084 A FR8301084 A FR 8301084A FR 2520549 B1 FR2520549 B1 FR 2520549B1
Authority
FR
France
Prior art keywords
openings
electric magnet
uniform field
uniform
field
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
FR8301084A
Other languages
English (en)
Other versions
FR2520549A1 (fr
Inventor
Robert Spencer Symons
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates 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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of FR2520549A1 publication Critical patent/FR2520549A1/fr
Application granted granted Critical
Publication of FR2520549B1 publication Critical patent/FR2520549B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Particle Accelerators (AREA)
  • Microwave Tubes (AREA)
FR8301084A 1982-01-26 1983-01-25 Bobine d'electro-aimant a champ uniforme, munie d'ouvertures Expired FR2520549B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/342,957 US4442417A (en) 1982-01-26 1982-01-26 Uniform field solenoid magnet with openings

Publications (2)

Publication Number Publication Date
FR2520549A1 FR2520549A1 (fr) 1983-07-29
FR2520549B1 true FR2520549B1 (fr) 1986-09-19

Family

ID=23344034

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8301084A Expired FR2520549B1 (fr) 1982-01-26 1983-01-25 Bobine d'electro-aimant a champ uniforme, munie d'ouvertures

Country Status (6)

Country Link
US (1) US4442417A (fr)
JP (1) JPS58169758A (fr)
CA (1) CA1193305A (fr)
DE (1) DE3302205A1 (fr)
FR (1) FR2520549B1 (fr)
GB (1) GB2114372B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3418580A1 (de) * 1984-05-18 1985-11-21 Krupp Polysius Ag, 4720 Beckum Spulenanordnung fuer starkfeld-magnetscheider
US5043823A (en) * 1990-06-22 1991-08-27 Hughes Aircraft Company Cathode ray tube focus coil alignment and assembly arrangement
US5365211A (en) * 1992-12-18 1994-11-15 International Business Machines Corporation Wound coil with integral cooling passages
US5463291A (en) * 1993-12-23 1995-10-31 Carroll; Lewis Cyclotron and associated magnet coil and coil fabricating process
IL264042B (en) 2018-12-31 2020-07-30 Doron Eyal Systems and methods for regulating force withdrawal from inspiratory force

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE687152C (de) * 1937-03-19 1940-01-24 Aeg Scheibenspule
US2843788A (en) * 1952-12-03 1958-07-15 Rolf W Peter Electron beam tube
NL208598A (fr) * 1955-07-08
US2939036A (en) * 1955-11-14 1960-05-31 Varian Associates Electron tube apparatus
DE2036942A1 (de) * 1970-07-24 1972-01-27 Siemens Ag Klystron
FR2403124A1 (fr) * 1977-09-20 1979-04-13 Boeing Co Dispositif a debosseler

Also Published As

Publication number Publication date
GB2114372A (en) 1983-08-17
JPS58169758A (ja) 1983-10-06
US4442417A (en) 1984-04-10
GB2114372B (en) 1985-08-14
GB8301525D0 (en) 1983-02-23
CA1193305A (fr) 1985-09-10
FR2520549A1 (fr) 1983-07-29
DE3302205C2 (fr) 1992-07-02
DE3302205A1 (de) 1983-08-04

Similar Documents

Publication Publication Date Title
TR21790A (tr) Daimi miknatish,doenen elektrik dinamosu
GB2158653B (en) A rotor with permanent magnets for an electrical machine
EP0169569A3 (en) Permanent magnet electrical machine
GB2128812B (en) Permanent magnet multipole with adjustable strength
GB2046528B (en) Permanent magnets
DE3374911D1 (en) A permanent magnet field type rotor structure for an electric machine
JPS55141957A (en) Miniature electric machine
NO163588C (no) Flerfaset elektrisk maskin med regulert magnetisk flukstetthet.
DE3070161D1 (en) Electrical stepper motor
IT8523168A0 (it) Macchina utensile con base magnetica.
GB2039151B (en) Matrix-bonded permanent magnets
DE3376911D1 (en) Plastic magnets impregnated with a dye-coated metallic magnet powder
IT1172764B (it) Indotto a spirale piatta perfezionato per macchina dinamoelettrica e procedimento per la sua realizzazione
DE3069734D1 (en) Segmented magnet dynamoelectric machine with series connected rotor conductors
FR2654122B1 (fr) Fer a repasser electrique.
FR2520549B1 (fr) Bobine d'electro-aimant a champ uniforme, munie d'ouvertures
DE3370105D1 (en) Permanent magnet field type dc machine
BE875235A (fr) Geophone a champ magnetique mis en forme
DE3574073D1 (de) Ironless solenoidal magnet
ES519497A0 (es) Maquina chifladora.
JPS5694958A (en) Permanent magnet excited electric machine
IT8324102A0 (it) Oscillatore a girotrone con cavita' a piu' diametri.
GB2058465B (en) Electromagnetic device with an armature surrounding a stator
DE3782339T2 (de) Elektrischer motor mit einem vielpoligen dauermagnetlaeufer.
BG24523A1 (en) Rotor with permanent magnets for electical machine

Legal Events

Date Code Title Description
ST Notification of lapse