JPH051605B2 - - Google Patents

Info

Publication number
JPH051605B2
JPH051605B2 JP59162756A JP16275684A JPH051605B2 JP H051605 B2 JPH051605 B2 JP H051605B2 JP 59162756 A JP59162756 A JP 59162756A JP 16275684 A JP16275684 A JP 16275684A JP H051605 B2 JPH051605 B2 JP H051605B2
Authority
JP
Japan
Prior art keywords
pair
terminals
loop
external terminals
radio frequency
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 - Lifetime
Application number
JP59162756A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6057602A (ja
Inventor
Uiriamu Tenanto Retsudopasu Toomasu
Dasu Serubii Robaato
Makudonarudo Sutoratsuchan Hatsuchison Jeimuzu
Mearii Iisutotsudo Rinda
Jonson Gurin
Roorando Maraado Jon
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.)
BURITEITSUSHU TEKUNOROJII GURUUPU Ltd
Original Assignee
BURITEITSUSHU TEKUNOROJII GURUUPU 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 BURITEITSUSHU TEKUNOROJII GURUUPU Ltd filed Critical BURITEITSUSHU TEKUNOROJII GURUUPU Ltd
Publication of JPS6057602A publication Critical patent/JPS6057602A/ja
Publication of JPH051605B2 publication Critical patent/JPH051605B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • 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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3628—Tuning/matching of the transmit/receive coil
    • G01R33/3635—Multi-frequency operation
    • 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
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
    • G01R33/3657—Decoupling of multiple RF coils wherein the multiple RF coils do not have the same function in MR, e.g. decoupling of a transmission coil from a receive coil

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP59162756A 1983-08-08 1984-08-01 磁気コイル Granted JPS6057602A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838321295A GB8321295D0 (en) 1983-08-08 1983-08-08 Magnetic coils
GB8321295 1983-08-08

Publications (2)

Publication Number Publication Date
JPS6057602A JPS6057602A (ja) 1985-04-03
JPH051605B2 true JPH051605B2 (en, 2012) 1993-01-08

Family

ID=10546974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59162756A Granted JPS6057602A (ja) 1983-08-08 1984-08-01 磁気コイル

Country Status (5)

Country Link
US (1) US4652825A (en, 2012)
EP (1) EP0133364B1 (en, 2012)
JP (1) JPS6057602A (en, 2012)
DE (1) DE3477319D1 (en, 2012)
GB (2) GB8321295D0 (en, 2012)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6222640A (ja) * 1985-07-19 1987-01-30 三洋電機株式会社 磁気共鳴撮像装置
NL8603005A (nl) * 1986-11-27 1988-06-16 Philips Nv Magnetisch resonantie apparaat met flexibele quadratuur spoelenstelsel.
DE4232827B4 (de) * 1992-09-30 2004-08-05 Siemens Ag Zirkular polarisierte Lokal-Antennenanordnung für ein Kernspintomographiegerät
DE4318134C2 (de) * 1993-06-01 1999-02-11 Siemens Ag Zirkular polarisierende Lokalantenne
US5663645A (en) * 1994-08-02 1997-09-02 Toshiba America Mri Inc. Spatially orthogonal rectangular coil pair suitable for vertical magnetic field MRI system
GB9511101D0 (en) * 1995-06-01 1995-07-26 British Tech Group Magnetic coil
US5944023A (en) * 1995-12-07 1999-08-31 Sims Deltec, Inc. Systems and methods for determining the location of an implanted device including a magnet
US6690165B1 (en) 1999-04-28 2004-02-10 Hironori Takahashi Magnetic-field sensing coil embedded in ceramic for measuring ambient magnetic field
DE10300168A1 (de) * 2003-01-07 2004-07-22 Thomas Kopp Integrierte multiple mehrdimensionale geophysikalische Sende- und Empfangsantennenspule
DE102007014604A1 (de) * 2007-03-26 2008-10-02 Thomas Kopp Integriertes Sender-Empfänger-Antennensystem zur Ortung und Qualifizierung elektromagnetisch relevanter Sondervolumen im Untergrund mit TEM oder NMR

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR938453A (fr) * 1943-08-07 1948-09-16 Thomson Houston Comp Francaise Nouveau type d'antenne directive
US2820944A (en) * 1952-09-23 1958-01-21 Philco Corp Method of and means for measuring frequency
US3135851A (en) * 1961-12-27 1964-06-02 Thomas M Hunter Resistance welding apparatus including a transformer
US3491318A (en) * 1968-08-16 1970-01-20 Atomic Energy Commission Baseball seam magnet with variable magnetic field
GB1596160A (en) * 1976-12-15 1981-08-19 Nat Res Dev Nuclear magnetic resonance apparatus and methods
DE3131946A1 (de) * 1981-08-12 1983-03-17 Siemens AG, 1000 Berlin und 8000 München "hochfrequenz-magnetsystem in einer einrichtung der kernspinresonanz-technik"
US4431968A (en) * 1982-04-05 1984-02-14 General Electric Company Method of three-dimensional NMR imaging using selective excitation
GB8321308D0 (en) * 1983-08-08 1983-09-07 M & D Technology Ltd Radio frequency coil

Also Published As

Publication number Publication date
GB8321295D0 (en) 1983-09-07
EP0133364B1 (en) 1989-03-15
DE3477319D1 (en) 1989-04-20
GB2144918A (en) 1985-03-13
US4652825A (en) 1987-03-24
JPS6057602A (ja) 1985-04-03
EP0133364A2 (en) 1985-02-20
GB8419507D0 (en) 1984-09-05
EP0133364A3 (en) 1986-01-22
GB2144918B (en) 1987-03-25

Similar Documents

Publication Publication Date Title
Hoult et al. Quadrature detection in the laboratory frame
US4594566A (en) High frequency rf coil for NMR device
US5473252A (en) High-frequency apparatus for nuclear spin tomography
US6008649A (en) RF coil apparatus for MR system with lateral B0 field
US4725779A (en) NMR local coil with improved decoupling
JPS58124936A (ja) 分布位相型高周波コイル装置
US4739271A (en) Decoupling multiple-coil NMR probes
JPH0616759B2 (ja) 核磁気共鳴コイル装置
JPS62112542A (ja) 磁気共振映像装置用高周波コイル
JP2009508555A (ja) Ｍｒｉで使用されるラジオ周波数コイル用ｒｆトラップ
JPH051605B2 (en, 2012)
JPH0714389B2 (ja) 核磁気共鳴映像装置、その他用インタ−フェイス方法および装置
US5500594A (en) Rf quadrature coil system
US5363113A (en) Electromagnetic antenna and excitation antenna provided with such electromagnetic antenna for a nuclear magnetic resonance apparatus
JPH04300524A (ja) 直交コイル装置
JPH0647016A (ja) 磁気共鳴装置で使用される直角コイル装置
US4613837A (en) Multiple feed Rf coils
JPH08184621A (ja) 電磁誘導式プローブ
JPH03188829A (ja) 核磁気共鳴断層撮影装置の共振器
JPH09276245A (ja) Ｍｒｉ用ｒｆコイル及びｍｒｉ装置
US5191289A (en) Rf-coil for mri apparatus
JPH07163547A (ja) 磁気共鳴装置用の二重共鳴アンテナ装置
US4721915A (en) High frequency antenna system for nuclear magnetic resonance tomography devices
JPH0247922Y2 (en, 2012)
JPH0767854A (ja) 傾斜磁場コイル装置

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term