GB942558A - Improvements in magnetic-cord inductors with variable magnetization and resonant circuits including such conductors - Google Patents

Improvements in magnetic-cord inductors with variable magnetization and resonant circuits including such conductors

Info

Publication number
GB942558A
GB942558A GB2157560A GB2157560A GB942558A GB 942558 A GB942558 A GB 942558A GB 2157560 A GB2157560 A GB 2157560A GB 2157560 A GB2157560 A GB 2157560A GB 942558 A GB942558 A GB 942558A
Authority
GB
United Kingdom
Prior art keywords
core
frequency band
magnetic
inductors
june
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
GB2157560A
Inventor
Jacques Lecomte
Joseph Taillet
Rene Le Gardeur
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
Publication of GB942558A publication Critical patent/GB942558A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/08—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by varying the permeability of the core, e.g. by varying magnetic bias
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
    • H05H7/02—Circuits or systems for supplying or feeding radio-frequency energy
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
    • H05H7/04—Magnet systems, e.g. undulators, wigglers; Energisation thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Optics & Photonics (AREA)
  • Particle Accelerators (AREA)

Abstract

942,558. Inductors; resonant cavities; particle accelerators. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 20, 1960 [June 20, 1959], No. 21575/60. Headings H1D, HIT and H1W. A variable inductor suitable for altering the frequency of a resonant circuit tunable over a wide frequency band comprising a two-part magnetic core with a magnetizing winding, the two core parts providing two parallel magnetic paths and one having an incremental permeabilitywhich varies rapidly with change of magnetizing current as compared with the other core part at the lower end of the frequency band, the other core part having an incremental permeability varying relatively slowly with change in magnetization of the core and having a relatively high Q factor over the higher end of the frequency band as compared with the first core part. Curves 1 and 2 in Fig. 1, show the relationship between the permeabilities of the two selected materials for different values of the biasing current. More than two ferrite materials may be used. The Specification mentions a number of suitable ferrites. Figs. 4 and 6 show the inductor included in the resonant cavity of a proton synchrotron, the arrangement differing from that described in Specification 932,566, only in the arrangement of the magnetic core which comprises members 14a, 14b which are of the same shape but are made of different ferrite materials.
GB2157560A 1959-06-20 1960-06-20 Improvements in magnetic-cord inductors with variable magnetization and resonant circuits including such conductors Expired GB942558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR798090A FR1237779A (en) 1959-06-20 1959-06-20 Improvements to resonant circuits that can be tuned over a wide frequency band

Publications (1)

Publication Number Publication Date
GB942558A true GB942558A (en) 1963-11-27

Family

ID=8716281

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2157560A Expired GB942558A (en) 1959-06-20 1960-06-20 Improvements in magnetic-cord inductors with variable magnetization and resonant circuits including such conductors

Country Status (6)

Country Link
BE (1) BE591921A (en)
CH (1) CH365765A (en)
FR (1) FR1237779A (en)
GB (1) GB942558A (en)
LU (1) LU38814A1 (en)
SE (1) SE300119B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5661366A (en) * 1994-11-04 1997-08-26 Hitachi, Ltd. Ion beam accelerating device having separately excited magnetic cores
JP2867933B2 (en) * 1995-12-14 1999-03-10 株式会社日立製作所 High-frequency accelerator and annular accelerator

Also Published As

Publication number Publication date
LU38814A1 (en) 1960-08-16
CH365765A (en) 1962-11-30
FR1237779A (en) 1960-08-05
SE300119B (en) 1968-04-08
BE591921A (en) 1960-10-03

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