TY - JOUR N2 - In this paper, the effect of the resolution of an analogue-to-digital converter (ADC) on the accuracy of timedomain low-frequency electrical impedance spectroscopy is examined. For the first time, we demonstrated that different wideband stimuli signals used for impedance spectroscopy have different sensitivities to the resolution of ADC used in impedance spectroscopy systems. We also proposed Ramp and Half-Gaussian signals as new wideband stimulating signals for EIS. The effect of ADC resolution was studied for Sinc, Gaussian, Half-Gaussian, and Ramp excitation signals using both simulation and experiments. We found that Ramp and Half-Gaussian signals have the best performance, especially at low frequencies. Based on the results, a wideband electrical impedance spectroscopy circuit was implemented with a high accuracy at frequencies bellow 10 Hz. L1 - http://www.journals.pan.pl/Content/107360/PDF/135.pdf L2 - http://www.journals.pan.pl/Content/107360 PY - 2017 IS - No 2 DO - 10.1515/mms-2017-0019 KW - electrical impedance spectroscopy KW - analogue-to-digital converter KW - Ramp signal KW - Fast Furrier transform KW - Nyquist plot A1 - Namin, Reyhaneh L. A1 - Ashtiani, Shahin J. PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation VL - vol. 24 DA - 2017.06.30 T1 - Effect of ADC Resolution on Low-Frequency Electrical Time-Domain Impedance Spectroscopy UR - http://www.journals.pan.pl/dlibra/publication/edition/107360 T2 - Metrology and Measurement Systems ER -