Rail measurement system
in Huta Królewska (Poland)

The rail measurement system in Huta Królewska is capable of measuring a wide variety of rail profiles. The measured parameters include waviness of the rail crown surface, straightness of the side surface of the rail head, foot twist, and parameters of the transverse section, like rail height, head width, web thickness, foot width and flatness, as well as right and left asymmetry. The rail quality is evaluated automatically immediately after the measurement. The rail measurement results are displayed on screen and can be printed either for the individual rails or for the selected groups of rails. The operator can specify tolerances for different rail profiles and different contracts.

The measurement system consists of four main measurement modules: two sets of probes for measurement of waviness and straightness, frame for the measurement of the rail transverse section geometry parameters, and the set of foot twist measurement probes.

Modules for rail transverse section geometry and foot twist measurement. Positions of probes in the transverse section measurement module are automatically adjusted according to the particular rail profile to be measured. Modular design of such systems makes it easy to adapt them to the particular needs of different customers.

Detailed rail measurement results

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All measurement results can be presented in a way most suitable for a given purpose. Rail straightness plots inform the operator about the general rail straightness, being supplemented with statistics of all deviations from straightness found in the rail. This statistics provides information on wave lengths and amplitudes separately for horizontal and vertical planes. Rail transverse section geometrical parameters are presented also in the form of plots and tables. Red colour in all tables indicates that the parameters' values exceed the user-specified tolerances.

Additional reading