Method for measuring wear of a rail and evaluation system

An evaluation system for measuring wear of a rail, the evaluation system comprising:

• an input for receiving signals from at least one wheel sensor, wherein the at least one wheel sensor is configured to detect a first set of wheel signals, and is configured to detect a second set of wheel signals after detecting the first set of wheel signals;
• a memory unit configured to save a first average wheel signal of the first set of wheel signals;
• an averaging unit that is configured to determine a second average wheel signal of the second set of wheel signals;
• and
• a comparator unit that is configured to determine a difference signal given by a difference between the second average wheel signal and the first average wheel signal,
• wherein:
• each wheel signal of the first set of wheel signals and the second set of wheel signals relates to a wheel of a rail vehicle passing the at least one wheel sensor;
• the averaging unit is connected to the input;
• the comparator unit is connected to the memory unit and the averaging unit;
• the at least one wheel sensor is mounted to the rail;
• each wheel signal of the first set of wheel signals comprises a maximum amplitude value;
• each wheel signal of the second set of wheel signals comprises a maximum amplitude value;
• and
• the difference signal is a measure of wear of the rail.