Evaluation and compensation of the Analog-to-Digital Converters and transducer influence in the CEM digital sampling wattmeter

Author

Diaz de Aguilar, Javier ; Salinas, J.R. ; Romero, Maria L. ; Garcia Lagos, Francisco ; Sanmamed, Yolanda A. ; Neira, Miguel

Author_Institution

Centro Espanol de Metrol., Tres Cantos, Spain

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

722

Lastpage

723

Abstract

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.

Keywords

analogue-digital conversion; compensation; harmonic analysis; power measurement; transducers; voltage dividers; wattmeters; ADC; CEM digital sampling wattmeter; amplitude compensation; analog-to-digital converter; high frequency harmonics; phase compensation; resistive divider; shunt divider; transducer; Bandwidth; Current measurement; Frequency measurement; Power measurement; Transducers; Voltage measurement; Wattmeters; Power measurements; Sampling wattmeter; ac shunts; analogical to digital converters; resistive dividers;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898589

Filename

6898589