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Research of Measurement Bias of AC Sampling Module Based on AD7656
Author(s): 
Pages: 81-83
Year: Issue:  5
Journal: Hydropower Automation and Dam Monitoring

Keyword:  AC samplingmeasurement biasanalog-digital converter;
Abstract: This paper analyzes several main factors which influence the measurement accuracy of AC sampling module,and put for-wards some improvements in hardware and some compensation methods in software.According to the calculation principle of power,a new algorithm of phase shift compensation is gived,which make AC sampling module to get the better performance than no use of it.
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