FR2287148A1 - Large size magnetic shielding panel - has two sets of partial layers positioned crosswise using bands of high permeability - Google Patents

Large size magnetic shielding panel - has two sets of partial layers positioned crosswise using bands of high permeability

Info

Publication number
FR2287148A1
FR2287148A1 FR7529802A FR7529802A FR2287148A1 FR 2287148 A1 FR2287148 A1 FR 2287148A1 FR 7529802 A FR7529802 A FR 7529802A FR 7529802 A FR7529802 A FR 7529802A FR 2287148 A1 FR2287148 A1 FR 2287148A1
Authority
FR
France
Prior art keywords
bands
sets
high permeability
partial layers
weight
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
FR7529802A
Other languages
French (fr)
Other versions
FR2287148B1 (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.)
Vacuumschmelze GmbH and Co KG
Original Assignee
Vacuumschmelze GmbH and Co KG
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 Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG
Publication of FR2287148A1 publication Critical patent/FR2287148A1/en
Application granted granted Critical
Publication of FR2287148B1 publication Critical patent/FR2287148B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0073—Shielding materials
    • H05K9/0075—Magnetic shielding materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/369—Electroencephalography [EEG]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Psychology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Psychiatry (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Laminated Bodies (AREA)

Abstract

The magnetic shielding panel, e.G. the linear dimensions of which are more than 1 metre, has the shielding provided by at least two sets of partial layers, positioned one across the other, and made by using bands of magnetic material which are as long as possible, and which have a high permeability. Preferably the latter magnetic material is a nickel-iron alloy containing 70-82 per cent by weight of nickel, 0-11 per cent by weight of copper, 0-6 per cent by weight of molybdenum, 0-6 per cent by weight of chrome, with the remainder being iron, the proportion of iron being at least 9 per cent by weight.
FR7529802A 1974-10-02 1975-09-29 Large size magnetic shielding panel - has two sets of partial layers positioned crosswise using bands of high permeability Granted FR2287148A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2446986A DE2446986C3 (en) 1974-10-02 1974-10-02 Magnetic shielding device

Publications (2)

Publication Number Publication Date
FR2287148A1 true FR2287148A1 (en) 1976-04-30
FR2287148B1 FR2287148B1 (en) 1980-04-04

Family

ID=5927317

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7529802A Granted FR2287148A1 (en) 1974-10-02 1975-09-29 Large size magnetic shielding panel - has two sets of partial layers positioned crosswise using bands of high permeability

Country Status (7)

Country Link
AT (1) AT359557B (en)
BE (1) BE833867A (en)
CH (2) CH595039A5 (en)
DE (1) DE2446986C3 (en)
FR (1) FR2287148A1 (en)
IT (1) IT1043021B (en)
NL (1) NL174504C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0476414A2 (en) * 1990-09-18 1992-03-25 Vacuumschmelze GmbH Screening cabin with supporting sandwich construction

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034885A1 (en) * 1980-09-12 1982-04-29 Siemens AG, 1000 Berlin und 8000 München Pressurised gas load switch - has ferromagnetic block exerting field on switching arc which compensates lorentz force
DE4338323C2 (en) * 1993-11-10 1996-04-18 Vacuumschmelze Gmbh Shielding for openings in shielded rooms, especially monitor shielding
DE102009035064A1 (en) * 2009-07-28 2011-02-03 Nkt Cables Gmbh Highly effective, low-loss ferromagnetic composite shielding
DE102018114258A1 (en) 2018-06-14 2019-12-19 Vacuumschmelze Gmbh & Co. Kg Magnetic shielding cabin panel, magnetic shielding cabin, and method of manufacturing a panel and magnetic shielding cabin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0476414A2 (en) * 1990-09-18 1992-03-25 Vacuumschmelze GmbH Screening cabin with supporting sandwich construction
EP0476414A3 (en) * 1990-09-18 1993-02-24 Vacuumschmelze Gmbh Screening cabin with supporting sandwich construction

Also Published As

Publication number Publication date
NL174504C (en) 1984-06-18
IT1043021B (en) 1980-02-20
BE833867A (en) 1976-01-16
CH595039A5 (en) 1978-01-31
NL7510185A (en) 1976-04-06
AT359557B (en) 1980-11-25
DE2446986C3 (en) 1981-08-27
NL174504B (en) 1984-01-16
DE2446986B2 (en) 1977-12-15
FR2287148B1 (en) 1980-04-04
ATA746075A (en) 1980-04-15
DE2446986A1 (en) 1976-04-08
CH594969A5 (en) 1978-01-31

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Legal Events

Date Code Title Description
ST Notification of lapse