GB1433397A - Receiver circuits for nuclear magnetic resonance analysers - Google Patents

Receiver circuits for nuclear magnetic resonance analysers

Info

Publication number
GB1433397A
GB1433397A GB4464173A GB4464173A GB1433397A GB 1433397 A GB1433397 A GB 1433397A GB 4464173 A GB4464173 A GB 4464173A GB 4464173 A GB4464173 A GB 4464173A GB 1433397 A GB1433397 A GB 1433397A
Authority
GB
United Kingdom
Prior art keywords
crystal
frequencies
resonant
frequency
sept
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
Application number
GB4464173A
Other languages
English (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.)
Canon Anelva Corp
Original Assignee
Nippon Electric Varian 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 Nippon Electric Varian Ltd filed Critical Nippon Electric Varian Ltd
Publication of GB1433397A publication Critical patent/GB1433397A/en
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
    • G01R33/28—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
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/22—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively
    • H03F1/226—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively with junction-FET's
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/191—Tuned amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
GB4464173A 1972-09-30 1973-09-24 Receiver circuits for nuclear magnetic resonance analysers Expired GB1433397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9764272A JPS5420874B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-09-30 1972-09-30

Publications (1)

Publication Number Publication Date
GB1433397A true GB1433397A (en) 1976-04-28

Family

ID=14197767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4464173A Expired GB1433397A (en) 1972-09-30 1973-09-24 Receiver circuits for nuclear magnetic resonance analysers

Country Status (3)

Country Link
JP (1) JPS5420874B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA993950A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1433397A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0155978A1 (en) * 1984-03-29 1985-10-02 Oxford Research Systems Limited Method of operating a nuclear magnetic resonance spectrometer
EP0166953A1 (de) * 1984-06-07 1986-01-08 Siemens Aktiengesellschaft Kernspin-Tomographiegerät

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0155978A1 (en) * 1984-03-29 1985-10-02 Oxford Research Systems Limited Method of operating a nuclear magnetic resonance spectrometer
EP0166953A1 (de) * 1984-06-07 1986-01-08 Siemens Aktiengesellschaft Kernspin-Tomographiegerät

Also Published As

Publication number Publication date
JPS5420874B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1979-07-26
CA993950A (en) 1976-07-27
JPS4962183A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-06-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee