@ARTICLE{Chabowski_Konrad_Simple_2015, author={Chabowski, Konrad and Piasecki, Tomasz and Dzierka, Andrzej and Nitsch, Karol}, volume={vol. 22}, number={No 1}, journal={Metrology and Measurement Systems}, pages={13-24}, howpublished={online}, year={2015}, publisher={Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation}, abstract={As it contains elements of complete digital impedance meter, the AD5933 integrated circuit is an interesting solution for impedance measurements. However, its use for measurements in a wide range of impedances and frequencies requires an additional digital and analogue circuitry. This paper presents the design and performance of a simple impedance meter based on the AD5933 IC. Apart from the AD5933 IC it consists of a clock generator with a programmable prescaler, a novel DC offset canceller for the excitation signal based on peak detectors and a current to voltage converter with switchable conversion ratios. The authors proposed a simple method for choosing the measurement frequency to minimalize errors resulting from the spectral leakage and distortion caused by a lack of an anti-aliasing filter in the DDS generator. Additionally, a novel method for the AD5933 IC calibration was proposed. It consists in a mathematical compensation of the systematic error occurring in the argument of the value returned from the AD5933 IC as a result. The performance of the whole system is demonstrated in an exemplary measurement.}, type={Artykuły / Articles}, title={Simple Wide Frequency Range Impedance Meter Based on AD5933 Integrated Circuit}, URL={http://journals.pan.pl/Content/90297/PDF/Journal10178-VolumeXXII%20Issue1_02.pdf}, doi={10.1515/mms-2015-0006}, keywords={impedance, converter, AD5933, SoC, system on a chip, measurement}, }