In modern society, with the car in our life playing a more and more important role ,vehicle speed measuring has became people are very concerned about the topic. Therefore speed device in the control system of locomotive occupy a very important position. The distinguish speed device requires high precision and the ability of the measurement of time as soon as possible.
This paper will switch to hall-effect sensor through measuring magnetic field intensity, to stabilize pulse signal measuring speed, square, and through the CSY - V9.0 sensor experiment software display waveform and specific speed, the experiments of vehicle velocity measurement system is in adapting to new, new technology development and the increasing needs of people do.
Keywords:Switch hall-effect sensor;CSY - V9.0 sensor experiment software