阻抗断层成象系统的研究

Research on Electrical Impedance Tomography System

描述了一阻抗断层成象系统。该系统用安装在有机玻璃筒壁上的３２只电极来注入电流和测量在边界上的电压分布。提出的一种快速成象算法利用所测到的一组电压值来重建筒内物体的断层阻抗分布图象。与其它成象方法相比，阻抗断层成象有着高速、简单、可靠的优点，适合于一些工业过程的动态监控与测量。

This paper describes an electrical impedance tomography (EIT) system. The system employs thirty two electrodes which are mounted around a plastic pipe to inject current and measure the resultant voltage profile on the boundary. A fast algorithm was developed to reconstruct the impedance distribution image of the cross section from the measured data. Compared with other tomographic methods, the EIT technique has the advantage of high speed, simplicity and reliability. It is suitable for applications in dynamic process monitoring and measuring in industry.