JPH0464259B2 - - Google Patents

Info

Publication number
JPH0464259B2
JPH0464259B2 JP62289402A JP28940287A JPH0464259B2 JP H0464259 B2 JPH0464259 B2 JP H0464259B2 JP 62289402 A JP62289402 A JP 62289402A JP 28940287 A JP28940287 A JP 28940287A JP H0464259 B2 JPH0464259 B2 JP H0464259B2
Authority
JP
Japan
Prior art keywords
magnetic field
magnetic
coil
capacitor
magnetic resonance
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
JP62289402A
Other languages
English (en)
Japanese (ja)
Other versions
JPH01131651A (ja
Inventor
Motoji Harato
Yoshizo Maekawa
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP62289402A priority Critical patent/JPH01131651A/ja
Priority to KR1019880014974A priority patent/KR910006237B1/ko
Priority to US07/271,833 priority patent/US4954924A/en
Priority to EP88119119A priority patent/EP0316901B1/en
Priority to DE3889425T priority patent/DE3889425T2/de
Publication of JPH01131651A publication Critical patent/JPH01131651A/ja
Publication of JPH0464259B2 publication Critical patent/JPH0464259B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • 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
    • G01R33/3621—NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
JP62289402A 1987-11-18 1987-11-18 磁気共鳴診断装置 Granted JPH01131651A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62289402A JPH01131651A (ja) 1987-11-18 1987-11-18 磁気共鳴診断装置
KR1019880014974A KR910006237B1 (ko) 1987-11-18 1988-11-14 고자장에서 사용되는 스위치
US07/271,833 US4954924A (en) 1987-11-18 1988-11-16 Switch for high magnetic field
EP88119119A EP0316901B1 (en) 1987-11-18 1988-11-17 Switch for high magnetic field
DE3889425T DE3889425T2 (de) 1987-11-18 1988-11-17 Schalter für Einsatz in starken Magnetfeldern.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62289402A JPH01131651A (ja) 1987-11-18 1987-11-18 磁気共鳴診断装置

Publications (2)

Publication Number Publication Date
JPH01131651A JPH01131651A (ja) 1989-05-24
JPH0464259B2 true JPH0464259B2 (cg-RX-API-DMAC7.html) 1992-10-14

Family

ID=17742767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62289402A Granted JPH01131651A (ja) 1987-11-18 1987-11-18 磁気共鳴診断装置

Country Status (5)

Country Link
US (1) US4954924A (cg-RX-API-DMAC7.html)
EP (1) EP0316901B1 (cg-RX-API-DMAC7.html)
JP (1) JPH01131651A (cg-RX-API-DMAC7.html)
KR (1) KR910006237B1 (cg-RX-API-DMAC7.html)
DE (1) DE3889425T2 (cg-RX-API-DMAC7.html)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2576938C (en) * 2004-08-27 2012-08-28 Archer-Daniels-Midland Company High-fat animal feed pellets and method for making same
DE102011087485B3 (de) * 2011-11-30 2013-05-29 Siemens Aktiengesellschaft Magnetresonanztomographie-Anlage, Verfahren zum Ausgleichen einer Feldinhomogenität in der Anlage und Shimspulenanordnung
JP6808434B2 (ja) * 2016-10-05 2021-01-06 富士通コンポーネント株式会社 電磁継電器
CN109961969B (zh) * 2017-12-26 2023-03-24 Abb瑞士股份有限公司 一种装置和一种包括装置的开关
CN111494010B (zh) * 2020-04-28 2022-03-29 绍兴梅奥心磁医疗科技有限公司 磁导航系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT246836B (de) * 1964-03-13 1966-05-10 Naimer H L Elektrisches Schaltschütz
DE3421830A1 (de) * 1984-06-13 1985-12-19 Philips Patentverwaltung Gmbh, 2000 Hamburg Kernspinresonanzgeraet mit einem stellglied zur anpassung oder zum nachstimmen des resonators
EP0173353B1 (en) * 1984-08-31 1991-09-18 Omron Tateisi Electronics Co. Electromagnetic relay with linearly moving armature assembly
FR2570872B1 (fr) * 1984-09-27 1988-08-26 Telemecanique Electrique Dispositif de commutation a composition variable
JPS62206734A (ja) * 1986-03-05 1987-09-11 富士電機株式会社 回路しや断器
DE3625342A1 (de) * 1986-07-26 1988-01-28 Philips Patentverwaltung Relais zur anwendung in einem stationaeren magnetfeld, insbesondere fuer kernspin-untersuchungsgeraete
US4725801A (en) * 1986-10-24 1988-02-16 Hamilton Standard Controls, Inc. Bistable solenoid switch

Also Published As

Publication number Publication date
EP0316901B1 (en) 1994-05-04
JPH01131651A (ja) 1989-05-24
DE3889425T2 (de) 1994-08-25
EP0316901A2 (en) 1989-05-24
DE3889425D1 (de) 1994-06-09
KR910006237B1 (ko) 1991-08-17
EP0316901A3 (en) 1991-03-27
US4954924A (en) 1990-09-04
KR890008875A (ko) 1989-07-12

Similar Documents

Publication Publication Date Title
US5311134A (en) Magnetic resonance imaging system
US5485086A (en) Continuous fluoroscopic MRI using spiral k-space scanning
US7414401B1 (en) System and method for shielded dynamic shimming in an MRI scanner
JP3779395B2 (ja) 磁気共鳴装置
JP4104328B2 (ja) オープンｍｒｉシステム用ｒｆシールド方法および装置
US4902975A (en) NMR tomography apparatus having iron-free dc motors for capacitor adjustment
US4656423A (en) Nuclear magnetic resonance diagnostic apparatus
JP2004000592A (ja) 傾斜コイルとｒｆコイルのカップリングを最小限にするための方法及び装置
KR102026008B1 (ko) 자기 공명 영상 시스템을 위한 스테이터리스 전기 모터 및 스테이터리스 전기 모터의 작동 방법
US6498947B2 (en) rf shielding method and apparatus
US6563315B1 (en) Gradient coil apparatus and method of micro-imaging
US20030088172A1 (en) Magnetic resonance tomography apparatus with damping of mechanical vibrations by the use of material with electrostrictive properties
US20040263165A1 (en) Methods and apparatus for imaging systems
US4890063A (en) Probe coil system for magnetic resonance apparatus
JPH0464259B2 (cg-RX-API-DMAC7.html)
US4776341A (en) Nuclear magnetic resonance tomography apparatus with galvanic connections to the examination subject
US20080097189A1 (en) Combined MR imaging and tracking
EP0922965B1 (en) A magnetic resonance r.f. coil arrangement
JPH01297054A (ja) 医用装置
WO2006088453A1 (en) Method of using a small mri scanner
JP2538954B2 (ja) 磁気共鳴診断装置
Gassert et al. Active mechatronic interface for haptic perception studies with functional magnetic resonance imaging: compatibility and design criteria
US20160018487A1 (en) Magnetic resonance imaging apparatus and method for controlling the same
JPH01299541A (ja) マルチバンドｒｆコイル装置
RU2580199C2 (ru) Регистрирующее устройство с пьезоэлектрическим двигателем, используемым для привода бумагоопорного валика, для окружающих сред с сильными магнитными полями