New means of generating a low-frequency sine-wave signal with a low harmonic distortion coefficient and the problems of providing metrological backup
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The problem of constructing precision apparatus for generating a sine-wave signal based on the direct digital synthesis method is considered. A block diagram and the basic technical characteristics are presented, and the individual units of the G3-135, G3-136, and G3-137 generators, the harmonic distortion coefficients of which are less than 0.001%, are described. The results of tests of the generators at the achieved value of the harmonic distortion coefficient are presented.
Keywordssine-wave generator direct digital synthesis method digital synthesizer harmonic distortion coefficient
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