J. Díaz de Aguilar, J. R. Salinas, M. L. Romero, F. Garcia Lagos, Y. A. Sanmamed, M. Neira
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Evaluation and compensation of the Analog-to-Digital Converters and transducer influence in the CEM digital sampling wattmeter
A method to compensate the influence in amplitude and phase of the Analog-to-Digital Converters (ADC) and transducers used in the CEM sampling wattmeter, has been evaluated. The influence of the ADC has been tested and an algorithm to compensate for amplitude and phase has been implemented. Similar algorithm has been also developed to compensate for the influence of the shunts and resistive dividers. This method will improve the precision of the CEM digital sampling wattmeter, especially in the presence of high frequency harmonics. This paper describes the CEM digital sampling wattmeter, the evaluation of the influence of the ADC and transducer and the implemented algorithms.
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