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On the signal-to-noise ratio of nuclear magnetic resonance oscillator spectrometers

M R Smith et al 1971 J. Phys. E: Sci. Instrum. 4 725-729   doi: 10.1088/0022-3735/4/10/003  Help

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M R Smith and D G Hughes
Univ. Alberta, Edmonton, Alta., Canada

Abstract. General expressions are obtained for the amplitude noise and frequency noise of steady-state oscillators. The nmr signal-to-noise ratios in the am and fm modes are then calculated. It is found that fm detection of nmr signals is insensitive to 1/f oscillator noise. Some measurements of noise and signal-to-noise ratio are reported and are shown to be in agreement with theory.

Print publication: Issue 10 (October 1971)

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