HIGH-PERFORMANCE TWO-PHASE SINE WAVE GENERATOR FOR IMPEDANCE BRIDGES

Mirosław Kozioł, Janusz Kaczmarek, Ryszard Rybski
Abstract:
The paper describes the experimental study of a two-phase sine wave generator intended for use in an impedance metrology. It is based on a 20-bit digital-to-analog converter (DAC) based on the R-2R architecture. Some tests for evaluation of the generator were carried out. The excellent parameters of the DAC made possible achieve a very good stability of the complex voltage ratio which is about ± 0.25 part in 106 for the amplitude ratio and less than ± 0.25 µrad for the phase difference.
Keywords:
digital waveform synthesis, impedance bridge, precise measurement
Download:
IMEKO-WC-2015-TC4-126.pdf
DOI:
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Event details
Event name:
XXI IMEKO World Congress
Title:

Measurement in Research and Industry

Place:
Prague, CZECH REPUBLIC
Time:
30 August 2015 - 04 September 2015
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