Electrical Resistance Tomography system with long-distance data transmission function

As a type of process parameter measuring technique, Electrical Resistance Tomography (ERT) has the characteristic of simple structure and working mechanism, low cost, no radiation, rapid response and ability of visualization. It is suitable for the process parameter monitoring of closed pipes and vessels in the industrial production process. However, the existing ERT systems are mainly used the design scheme of laboratory instrumentation, and the data acquisition and processing unit uses only the local integration mode. It doesn´t have long-distance data transmission function, are unable to connect with industrial control systems, and limits its application in actual industrial process. In order to solve the above problems, a design scheme of ERT System with long-distance data transmission function is put forward. An optical fiber data transmission mode based on Aurora protocol is applied to implement the high speed and reliable data transmission. By check the control words based on the finite state machine, the remote switching of system working modes is realized. The ERT system with long-distance data transmission function is verified with experiments.