CA993950A - Probe preamplifier for dual nmr signals utilizing a piezoelectric crystal unit - Google Patents

Probe preamplifier for dual nmr signals utilizing a piezoelectric crystal unit

Info

Publication number
CA993950A
CA993950A CA182,192A CA182192A CA993950A CA 993950 A CA993950 A CA 993950A CA 182192 A CA182192 A CA 182192A CA 993950 A CA993950 A CA 993950A
Authority
CA
Canada
Prior art keywords
dual
crystal unit
piezoelectric crystal
nmr signals
signals utilizing
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
CA182,192A
Other languages
English (en)
Other versions
CA182192S (en
Inventor
Yoshiaki Satoh
Hidefumi Funaki
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
Application granted granted Critical
Publication of CA993950A publication Critical patent/CA993950A/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)
CA182,192A 1972-09-30 1973-09-28 Probe preamplifier for dual nmr signals utilizing a piezoelectric crystal unit Expired CA993950A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA993950A true CA993950A (en) 1976-07-27

Family

ID=14197767

Family Applications (1)

Application Number Title Priority Date Filing Date
CA182,192A Expired CA993950A (en) 1972-09-30 1973-09-28 Probe preamplifier for dual nmr signals utilizing a piezoelectric crystal unit

Country Status (3)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0155978B1 (en) * 1984-03-29 1988-10-12 Oxford Research Systems Limited 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 (cs) 1974-06-17
GB1433397A (en) 1976-04-28
JPS5420874B2 (cs) 1979-07-26

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