GB1259392A – – Google Patents
GB1259392A – – Google Patents
Info
Publication number
GB1259392A
GB1259392A
GB1259392DA
GB1259392A
GB 1259392 A
GB1259392 A
GB 1259392A
GB 1259392D A
GB1259392D A
GB 1259392DA
GB 1259392 A
GB1259392 A
GB 1259392A
Authority
GB
United Kingdom
Prior art keywords
amplifier
coils
switch
external
internal
Prior art date
1968-01-15
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.)
1968-01-15
Filing date
1969-01-15
Publication date
1972-01-05
Priority claimed from SU1210942A
external-priority
patent/SU286332A1/ru
1969-01-15
Application filed
filed
Critical
1972-01-05
Publication of GB1259392A
publication
Critical
patent/GB1259392A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G01R33/38—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]
G01R33/46—NMR spectroscopy
Abstract
1,259,392. Nuclear magnetic resonance spectrometers. SPETSIALNOE KONSTRUKTORSKOE BJURO ANALITICHESKOGO PRIBOROSTROENIA AN SSSR. Jan.15, 1969 [Jan.15, 1968], No.2448/69. Heading G1N. In a nuclear magnetic resonance spectrometer using internal and external N.M.R. references for field stabilization, the analysis sample probe 2 is disposed within the field generated by a pair of coils 6 forming part of the internal stabilization system and the external reference sample probe 7 is arranged outside the field of coils 6. Operation of the external system is independent of the internal system. As shown, both probes are connected to an r.f. generator 15 and to an a.f. modulation generator 16. The output from the external reference probe 7 is connected via an r.f. amplifier 8, a.f. amplifier 9 and D.C. amplifier 10 to coils 11. The output from the analysis probe 2 is connected via an r.f. amplifier 3, a.f. amplifier 4 and D.C. amplifer 5 to a switch 17, which in position C connects the coils 6 to the output of amplifier 5. The r.f. amplifier 3 is also connected via an a.f. amplifier 12 to an oscilloscope 13 and recorder 14. Selection of the required part of a spectrum, resolution adjustment and setting of optimum levels of r.f. and a.f. voltages are carried out using the oscilloscope 13 with switch 17 in position A. For recording using only the external stabilization system, switch 17 is put in position B in which the current through coils 6 and hence the field intensity at the sample is varied in synchronism with the travel of the chart paper. When using the internal stabilization system with switch 17 in position C, the N.M.R. spectrum is scanned by sweeping the a.f. modulation frequency. The spectrometer is useful for studying complex spectron (e.g. the N.M.R. spectrum of fluorine) and temperature dependencies.
GB1259392D
1968-01-15
1969-01-15
Expired
GB1259392A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
SU1210942A
SU286332A1
(en)
1968-01-15
Publications (1)
Publication Number
Publication Date
GB1259392A
true
GB1259392A
(en)
1972-01-05
Family
ID=20441730
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1259392D
Expired
GB1259392A
(en)
1968-01-15
1969-01-15
Country Status (3)
Country
Link
US
(1)
US3777254A
(en)
FR
(1)
FR2000229A1
(en)
GB
(1)
GB1259392A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN103890599A
(en)
*
2011-10-17
2014-06-25
皇家飞利浦有限公司
Magnetic field probe for MRI with a fluoroelastomer or a solution of a fluorine-containing compound
Families Citing this family (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1544272A
(en)
*
1975-02-04
1979-04-19
Jeol Ltd
Nuclear magnetic resonance apparatus
US4110681A
(en)
*
1977-02-16
1978-08-29
International Business Machines Corporation
NMR field frequency lock system
US4446431A
(en)
*
1981-08-24
1984-05-01
Monsanto Company
Double-tuned single coil probe for nuclear magnetic resonance spectrometer
DE10157972B4
(en)
*
2001-11-27
2004-01-08
Bruker Biospin Ag
NMR spectrometer and operating method with stabilization of the transverse magnetization in superconducting NMR resonators
CN108761364B
(en)
*
2018-05-21
2020-06-05
上海健康医学院
Nuclear magnetic resonance relaxation analyzer field locking system and application method thereof
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3427532A
(en)
*
1966-02-14
1969-02-11
Varian Associates
Nuclear magnetic resonance probe for spectrometers having an internal reference nuclei different than the nuclei under observation
US3388322A
(en)
*
1966-02-21
1968-06-11
Varian Associates
Gyromagnetic resonance spectrometer having selectable internal and external resonantcontrol groups
1969
1969-01-10
FR
FR6900249A
patent/FR2000229A1/fr
not_active
Withdrawn
1969-01-15
GB
GB1259392D
patent/GB1259392A/en
not_active
Expired
1971
1971-03-12
US
US00123915A
patent/US3777254A/en
not_active
Expired – Lifetime
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CN103890599A
(en)
*
2011-10-17
2014-06-25
皇家飞利浦有限公司
Magnetic field probe for MRI with a fluoroelastomer or a solution of a fluorine-containing compound
CN103890599B
(en)
*
2011-10-17
2016-09-21
皇家飞利浦有限公司
There is the magnet field probe for nuclear magnetic resonance of the solution of fluoroelastomer or fluorochemical
Also Published As
Publication number
Publication date
FR2000229A1
(en)
1969-09-05
US3777254A
(en)
1973-12-04
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Legal Events
Date
Code
Title
Description
1972-05-17
PS
Patent sealed [section 19, patents act 1949]
1978-08-16
PCNP
Patent ceased through non-payment of renewal fee
