Electric Circuit Design in EIS for Metal Corrosion System with Coating Defects

The method analyzing impedance spectroscopy by electric circuits is widely used to study coating performance. However, as to a certain system of coating with defects, it is difficult to design a electric circuit fitting it, because of the complexity of the system and the imperfection of the electric circuit technology. Therefore, for the development of electric circuit technology, the present paper summarizes the design and research methods home and abroad, and proposes scientific mentality of designing for electric circuits.