Study on ERT System of Smart Layer of Carbon Fiber Composite

Electrical resistance tomography (ERT) is always used in the field of detection of medicine、prospecting、two phase flow at the present time. It is rarely used to measure structure under condition of loading. In this paper, with the characters of different response - resistance effect showed by carbon fiber felt when attached to the different matrix, we developed a new type of smart layer of carbon fiber composites, the composite material has a very high pressure-resistance sensitivity, combined with ERT technology, the structure surface electrical resistivity distribute can be conversed, thus the structure of the surface of the load situation can be analyzed.