METHOD FOR MEASUREMENT AND CONTROL OF RAIL TRACK MAGNETISATION Russian patent published in 2014 - IPC B60L1/00 

FIELD: instrumentation.

SUBSTANCE: when implementing the rail track magnetisation control method, the magnetic induction value is defined, the value of rail track magnetic induction is compared to the maximal permissible values of magnetic induction to provide for trouble-free operation of automatic cab signalling which are determined at self-consistent hauling operations, alternating and direct current hauling operations. Operations to demagnetise the rail track are carried out in case the said value is exceeding. The maximal permissible value of magnetic induction amounts to maximum 1.0 mT for new rails laid in the track at initial laying prior to demagnetising as well as for rails which are operated in the track regardless of tonnage passed but which were not demagnetised after being laid, the maximal permissible value of magnetic induction amounts to maximum 7.0 mT for the sections of track with rails inside the gauge or at the end of sleepers.

EFFECT: improved measurement accuracy both for new rails and for those in operation.

3 cl, 1 dwg