The characterization of the contact rail - wheel, between a rail vehicle and a track ferree equiped of such a system.

摘要

The present invention relates to a system of characterization of the contact rail - wheel, between a rail vehicle and a railway line (102) with two parallel rails (104,106), including: - a device in order to induce an electric current in said rails (104,106); - at least one device (132), when an axle (124) of the vehicle in motion is present between said short - circuits (110,112), the electric current (130) in the axle (124); - at least one means (138) for measuring the voltage between the said rails (104,106); and - at least one means of calculation in order to calculate the impedance of the contact rail - wheel as a function of said current (130) and of said voltage, characterized in that said device for measuring the electric current (130) in the axle (124) is a means of the measurement inductive (132), positioned between said short - circuits (110,112).