A nuclear quadrupole resonance spectrometer with automatic gain control and sideband suppression
作者:
K. Rukmani,
J. Ramakrishna,
期刊:
Review of Scientific Instruments
(AIP Available online 1992)
卷期:
Volume 63,
issue 10
页码: 4271-4276
ISSN:0034-6748
年代: 1992
DOI:10.1063/1.1143724
出版商: AIP
数据来源: AIP
摘要:
A cw nuclear quadrupole resonance spectrometer centered on the superregenerative oscillator and working in the range 20–40 MHz is described. Both automatic gain control and sideband suppression have been incorporated by using external quench waveforms of variable mark‐to‐space ratio. Extensive use of ICs in these circuits leads to ease of construction as well as increased reliability. The S/N obtained remains unaffected by the automatic gain control while the sideband suppression does give rise to a small degradation. The spectrum of NaClO3has been recorded.
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