FR1578451A - - Google Patents

Info

Publication number
FR1578451A
FR1578451A FR1578451DA FR1578451A FR 1578451 A FR1578451 A FR 1578451A FR 1578451D A FR1578451D A FR 1578451DA FR 1578451 A FR1578451 A FR 1578451A
Authority
FR
France
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
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
Priority claimed from US661985A external-priority patent/US3873909A/en
Application filed filed Critical
Application granted granted Critical
Publication of FR1578451A publication Critical patent/FR1578451A/fr
Expired 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/46—NMR spectroscopy
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/389—Field stabilisation, e.g. by field measurements and control means or indirectly by current stabilisation
    • 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/58—Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material
    • G01R33/583—Calibration of signal excitation or detection systems, e.g. for optimal RF excitation power or frequency

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
FR1578451D 1967-08-21 1968-08-20 Expired FR1578451A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66198667A 1967-08-21 1967-08-21
US661985A US3873909A (en) 1967-08-21 1967-08-21 Gyromagnetic apparatus employing computer means for correcting its operating parameters

Publications (1)

Publication Number Publication Date
FR1578451A true FR1578451A (fr) 1969-08-14

Family

ID=27098434

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1578451D Expired FR1578451A (fr) 1967-08-21 1968-08-20

Country Status (4)

Country Link
JP (1) JPS5126829B1 (fr)
DE (1) DE1798079C3 (fr)
FR (1) FR1578451A (fr)
GB (1) GB1241843A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0257371A2 (fr) * 1986-08-20 1988-03-02 Spectrospin AG Dispositif pour compenser des perturbations de champs variables en temps dans des champs magnétiques

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934966A1 (de) * 1979-08-29 1981-03-19 Southwest Research Institute, San Antonio, Tex. Magnetisches nachweisverfahren und vorrichtung
JPS59200947A (ja) * 1983-04-30 1984-11-14 Toshiba Corp Ｍｒｉ装置における静磁場強度調整方法
JPS60189905A (ja) * 1984-03-09 1985-09-27 Mitsubishi Electric Corp 高均一磁界発生装置
JP4498947B2 (ja) * 2004-04-15 2010-07-07 日本電子株式会社 磁気共鳴スペクトルの定量方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0257371A2 (fr) * 1986-08-20 1988-03-02 Spectrospin AG Dispositif pour compenser des perturbations de champs variables en temps dans des champs magnétiques
EP0257371A3 (en) * 1986-08-20 1989-05-17 Spectrospin Ag Device for compensating time-variant field disturbances in magnetic fields

Also Published As

Publication number Publication date
DE1798079A1 (de) 1971-11-04
DE1798079C3 (de) 1975-03-06
JPS5126829B1 (fr) 1976-08-09
DE1798079B2 (de) 1974-07-18
GB1241843A (en) 1971-08-04

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Legal Events

Date Code Title Description
ST Notification of lapse