Analysis of sensor orientation in Railway axle counters, using Response Surface Methodology

Considering the importance of axle counter function in detecting the train wheels and determining the clearance or occupation of a track section, it is important to assure a safe and reliable performance of this system.In this paper, in order to improve the sensor performance, the authors have focused on the orientation and position of magnetic sensors’ coils.In order to improve the measuring signal quality, in both situation of with and without wheel, it is important to adjust the relative orientation of the transmitter and receiver coils. Due to the existence of an infinite relative orientation of the sensor coils, RSM is applied in order to analyze the whole range of position and orientation of the system and introduce the optimum orientation. To provide some sample data, as inputs to the RSM algorithm, finite element modeling, FEM, approach is utilized.The analysis not only provides the accurate relative orientation and positions of the sensor coils, it also improves the speed of analysis, comparing to absolute 3D FEM analysis and/or field based measurements

کلیدواژه ها:

electromagnetic sensor ، Finite Element Method (FEM) ، Optimization ، railway axle counter ، Response Surface Methodology (RSM