JPS5420874B2 - - Google Patents

Info

Publication number
JPS5420874B2
JPS5420874B2 JP9764272A JP9764272A JPS5420874B2 JP S5420874 B2 JPS5420874 B2 JP S5420874B2 JP 9764272 A JP9764272 A JP 9764272A JP 9764272 A JP9764272 A JP 9764272A JP S5420874 B2 JPS5420874 B2 JP S5420874B2
Authority
JP
Japan
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
JP9764272A
Other languages
Japanese (ja)
Other versions
JPS4962183A (enrdf_load_html_response
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 filed Critical
Priority to JP9764272A priority Critical patent/JPS5420874B2/ja
Priority to GB4464173A priority patent/GB1433397A/en
Priority to CA182,192A priority patent/CA993950A/en
Publication of JPS4962183A publication Critical patent/JPS4962183A/ja
Publication of JPS5420874B2 publication Critical patent/JPS5420874B2/ja
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)
JP9764272A 1972-09-30 1972-09-30 Expired JPS5420874B2 (enrdf_load_html_response)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP9764272A JPS5420874B2 (enrdf_load_html_response) 1972-09-30 1972-09-30
GB4464173A GB1433397A (en) 1972-09-30 1973-09-24 Receiver circuits for nuclear magnetic resonance analysers
CA182,192A CA993950A (en) 1972-09-30 1973-09-28 Probe preamplifier for dual nmr signals utilizing a piezoelectric crystal unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9764272A JPS5420874B2 (enrdf_load_html_response) 1972-09-30 1972-09-30

Publications (2)

Publication Number Publication Date
JPS4962183A JPS4962183A (enrdf_load_html_response) 1974-06-17
JPS5420874B2 true JPS5420874B2 (enrdf_load_html_response) 1979-07-26

Family

ID=14197767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9764272A Expired JPS5420874B2 (enrdf_load_html_response) 1972-09-30 1972-09-30

Country Status (3)

Country Link
JP (1) JPS5420874B2 (enrdf_load_html_response)
CA (1) CA993950A (enrdf_load_html_response)
GB (1) GB1433397A (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3474594D1 (en) * 1984-03-29 1988-11-17 Oxford Res Syst Method of operating a nuclear magnetic resonance spectrometer
DE8418666U1 (de) * 1984-06-07 1985-10-17 Siemens AG, 1000 Berlin und 8000 München Kernspin-Tomographiegerät

Also Published As

Publication number Publication date
JPS4962183A (enrdf_load_html_response) 1974-06-17
CA993950A (en) 1976-07-27
GB1433397A (en) 1976-04-28

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