Aspects on increasing data collection speed of an EIT system

A novel two-plane EIT system has been successfully developed in Leeds University for multi-phase flow measurement. Its fast data collection speed - over 1000 frames/plane per second, the authors believe, is a big step in the history of sine-wave signal based EIT technique. This paper analyses the facts limiting the speed of a conventional EIT system, and then briefly summarise the methods we used to increase data collection speed. Discussion is based on the most widely used EIT data collection mode – adjacent electrode pair protocol. Theoretical and experimental data collection speeds are presented.