METHOD OF DEMAGNETISING OF RAIL BLOCK JOINT AND DEVICE TO THIS END Russian patent published in 2014 - IPC E01B11/54 H01F13/00 

FIELD: transport.

SUBSTANCE: invention relates to railway transport, particularly, to demagnetising of rail block joint. In compliance with this method block joint is subjected to magnetic field effects excited by inductor with its winding connected to capacitor unit. Indicator winding is connected to capacitor unit via set of switches controlled by Hall sensor to make magnetic pulse excited by said winding at discharge of capacitors feature magnetic induction vector directed opposite that created by block joint magnetic field. Capacitor unit is charged from piezoelectric generator. Note here that to deform the generator piezoelectric element mechanical vibrations of the rails caused by rolling stock are used. Capacitor unit is discharged to inductor winding by power hate when rated voltage of said unit is reached under control of threshold element. Invention relates also to device that implements said method.

EFFECT: permanent demagnetising.

2 cl, 2 dwg