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GB202109459D0 - A magnetic field - Google Patents

A magnetic field

Info

Publication number
GB202109459D0
GB202109459D0 GBGB2109459.4A GB202109459A GB202109459D0 GB 202109459 D0 GB202109459 D0 GB 202109459D0 GB 202109459 A GB202109459 A GB 202109459A GB 202109459 D0 GB202109459 D0 GB 202109459D0
Authority
GB
United Kingdom
Prior art keywords
magnetic field
magnetic
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.)
Pending
Application number
GBGB2109459.4A
Other versions
GB2606589A (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.)
University of Nottingham
Magnetic Shields Ltd
Original Assignee
University of Nottingham
Magnetic Shields 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 University of Nottingham, Magnetic Shields Ltd filed Critical University of Nottingham
Publication of GB202109459D0 publication Critical patent/GB202109459D0/en
Priority to EP22725915.7A priority Critical patent/EP4115194A2/en
Priority to PCT/EP2022/063808 priority patent/WO2022238588A2/en
Priority to JP2023573599A priority patent/JP2024522522A/en
Priority to CN202280004655.9A priority patent/CN115843336A/en
Priority to US18/559,627 priority patent/US20240280657A1/en
Publication of GB2606589A publication Critical patent/GB2606589A/en
Pending 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
    • H05K9/0071—Active shielding
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/025—Compensating stray fields
    • 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
    • A61B5/242—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents
    • 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
    • A61B5/242—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents
    • A61B5/245—Detecting biomagnetic fields, e.g. magnetic fields produced by bioelectric currents specially adapted for magnetoencephalographic [MEG] signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/007—Environmental aspects, e.g. temperature variations, radiation, stray fields
    • G01R33/0076—Protection, e.g. with housings against stray fields
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/0094—Sensor arrays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/42—Screening
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/42—Screening
    • G01R33/421—Screening of main or gradient magnetic field
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/42—Screening
    • G01R33/422—Screening of the radio frequency field
    • 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
    • H05K9/0001—Rooms or chambers
    • H05K9/0003—Shielded walls, floors, ceilings, e.g. wallpaper, wall panel, electro-conductive plaster, concrete, cement, mortar
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/18—Shielding or protection of sensors from environmental influences, e.g. protection from mechanical damage
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0033—Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room
    • A61B5/0046—Arrangements of imaging apparatus in a room, e.g. room provided with shielding or for improved access to apparatus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/24—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/26—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Epidemiology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Toxicology (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
GB2109459.4A 2021-05-14 2021-06-30 A magnetic shield Pending GB2606589A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP22725915.7A EP4115194A2 (en) 2021-05-14 2022-05-20 A magnetic shield
PCT/EP2022/063808 WO2022238588A2 (en) 2021-05-14 2022-05-20 A magnetic shield
JP2023573599A JP2024522522A (en) 2021-05-14 2022-05-20 Magnetic Shield
CN202280004655.9A CN115843336A (en) 2021-06-30 2022-05-20 Magnetic shield
US18/559,627 US20240280657A1 (en) 2021-05-14 2022-05-20 A magnetic shield

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB2106961.2A GB202106961D0 (en) 2021-05-14 2021-05-14 A magnetic shield

Publications (2)

Publication Number Publication Date
GB202109459D0 true GB202109459D0 (en) 2021-08-11
GB2606589A GB2606589A (en) 2022-11-16

Family

ID=76550688

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB2106961.2A Ceased GB202106961D0 (en) 2021-05-14 2021-05-14 A magnetic shield
GB2109459.4A Pending GB2606589A (en) 2021-05-14 2021-06-30 A magnetic shield

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB2106961.2A Ceased GB202106961D0 (en) 2021-05-14 2021-05-14 A magnetic shield

Country Status (1)

Country Link
GB (2) GB202106961D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4249924B1 (en) * 2022-03-23 2025-05-14 Melexis Technologies SA Current sensor system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180943B (en) * 1985-09-20 1990-07-04 Nat Res Dev Magnetic field screens
DE3628161A1 (en) * 1986-08-20 1988-02-25 Spectrospin Ag DEVICE FOR COMPENSATING TIME VARIANTS FIELD FAULTS IN MAGNETIC FIELDS
GB8818087D0 (en) * 1988-07-29 1988-09-01 Univ Southampton Improvements in/relating to attenuation of electro-magnetic field components
US6236203B1 (en) * 1998-09-28 2001-05-22 Picker International, Inc. Super shielding of finite length structures in open magnetic and electric systems
US6049207A (en) * 1998-11-25 2000-04-11 Picker International, Inc. Double-duty gradient coil assembly having two primary gradient coil sets and a common screening coil set
JP2003273565A (en) * 2002-03-12 2003-09-26 Mti:Kk Active magnetic shield device
JP2006324651A (en) * 2005-04-20 2006-11-30 Matsushita Electric Ind Co Ltd Shielding method, shielding device, electrical and electronic equipment
US9030197B1 (en) * 2012-03-23 2015-05-12 Ohio Semitronics Inc. Active compensation for ambient, external magnetic fields penetrating closed loop magnetic cores particularly for a fluxgate current sensor
US9451734B2 (en) * 2012-09-18 2016-09-20 Seiko Epson Corporation Magnetic shielding device and magnetic shielding method
EP2851702A1 (en) * 2013-09-11 2015-03-25 Seiko Epson Corporation Magnetic shielding apparatus and magnetic shielding method
CN107831462A (en) * 2017-10-24 2018-03-23 中国计量大学 Longitudinal gradient coil based on 01 integer programmings
US11131723B2 (en) * 2019-05-03 2021-09-28 Hi Llc Single controller for wearable sensor unit that includes an array of magnetometers

Also Published As

Publication number Publication date
GB202106961D0 (en) 2021-06-30
GB2606589A (en) 2022-11-16

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