DocumentCode :
23826
Title :
AC Voltage Reference Using the Fundamental of DAC Stepwise-Approximated Sine Waves
Author :
Yan Yang ; Lu Huang ; Zuliang Lu ; Wenjun Lu
Author_Institution :
Nat. Inst. of Metrol., Beijing, China
Volume :
63
Issue :
2
fYear :
2014
fDate :
Feb. 2014
Firstpage :
473
Lastpage :
478
Abstract :
The fundamental of digital-analog conversion (DAC) stepwise-approximated sine waves (SASW) is calculable based on the amplitude of each step. Using direct comparison method in specific frequency, the fundamental of DAC SASW can be used as ac voltage reference. A normal commercial DAC-based ac voltage system for direct fundamental comparison using lock-in amplifier is constructed to demonstrate the practicability of this method. The DAC quantization errors and the influences of rising times and transients between adjacent steps affecting its fundamental wave are also studied and evaluated. The results show that the fundamental of SASW could be used as ac voltage reference up to audio frequency range.
Keywords :
amplifiers; digital-analogue conversion; quantisation (signal); reference circuits; signal synthesis; AC voltage reference; DAC SASW; DAC quantization error; DAC stepwise-approximated sine waves; audio frequency range; digital-analog conversion; direct comparison method; lock-in amplifier; Frequency measurement; Harmonic analysis; Nickel; Quantization (signal); Standards; Uncertainty; Voltage measurement; AC voltage reference; digital–analog conversion; fundamental; harmonic; signal synthesize; stepwise-approximated sine wave;
fLanguage :
English
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9456
Type :
jour
DOI :
10.1109/TIM.2013.2280470
Filename :
6607221
Link To Document :
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