Research On Prevention And Detection Of Stray Current

Along with society's unceasing progress, the city transportation also rapidly develops, the subway and other transportation tools already entered in each big city people's life, the following stray currents question has also aroused society's widespread interest.Stray current flows from the pipeline to soil to make the tube body suffer corrosion . 1 ampere direct-current stray current flows through one steel tube , will lead to eclipse approximately 10 kilograms of metal for 1 year. Stray current can make a blasting cap happen exploding earlier on, Stray current is able to arouse a gas explosion .so, researching on stray current is very meaningful.This article first elaborated the stray currents definition, the reason of causing the stray currents as well as the stray currents' harm, and summarized domestic and foreign preventing and controlling method to the stray currents. Then, proposed research plan on the stray currents, namely conducts the stray currents examination simulator study in the laboratory, design a set of device to simulate the distribution of the subway stray currents .Finally, introduced the stray currents examination system. in detail.This text is organized according to the step of the development of the system, including system analysis,system architecture design,system implementation and system test. It gives a detail analysis of each unit ,especially analyzes the implementation method of system's hardware.Designing a set of hardware examinations system independently is the biggest different spots between this article and other correlation paper, this system may gather process, memory data and may carry on the correspondence with computer...