Frequency modulated NMR spectrometer for measuring of internal magnetic fields

F. I. Toth, K. Tompa, G. Gruner

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A Robinson-type oscillator with an automatic frequency control circuit suitable for the measurement of internal magnetic fields, is described. An AFC circuit ensures that the tuning of the tank circuit is such that the first harmonic of the modulation frequency is kept at a minimum in the detector output. Cascade amplifier states permit operation at higher frequencies with a better signal-to-noise ratio and larger sweep amplitudes than with other types of amplifiers. The use of the equipment is demonstrated by measuring the 57Fe NMR signal in iron and iron-cobalt alloys.

Original languageEnglish
Article number016
Pages (from-to)42-44
Number of pages3
JournalJournal of Physics E: Scientific Instruments
Volume5
Issue number1
DOIs
Publication statusPublished - 1972

Fingerprint

Spectrometer
automatic frequency control
Spectrometers
Magnetic Field
Nuclear magnetic resonance
spectrometers
Magnetic fields
Internal
Iron
nuclear magnetic resonance
Networks (circuits)
amplifiers
magnetic fields
cobalt alloys
Cobalt alloys
Cobalt
Frequency Modulation
iron alloys
Iron alloys
Frequency modulation

ASJC Scopus subject areas

  • Instrumentation
  • Physics and Astronomy(all)
  • Engineering(all)

Cite this

Frequency modulated NMR spectrometer for measuring of internal magnetic fields. / Toth, F. I.; Tompa, K.; Gruner, G.

In: Journal of Physics E: Scientific Instruments, Vol. 5, No. 1, 016, 1972, p. 42-44.

Research output: Contribution to journalArticle

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