부산대학교 도서관

The impact of coaxial cables on EIT system performance has always been a concern. The usual goal is to find the best approach to cancel out the effect of the shunt impedance of the cable as it has a high impact on the system performance. In contrast, the impact of series elements is usually neglected. In this paper, a new approach based on precise modeling of the cable and the current source using two-port parameters is described, verified, and evaluated. This approach compensates for both the series and shunt elements on the path from the source to the load, providing a compensated load current and voltage. Experimental and simulation results for frequencies up to 1 MHz are provided, showing a comparison between the reconstructed load values using both compensated and uncompensated load voltage for a 1m RG-174 coaxial cable with a grounded shield. The experimental results show promising performance in minimizing the series cable effects and achieving a low relative error of 0.1% in load reconstruction.