METHOD OF NONDESTRUCTING EXAMINATION OF FERRO-CONCRETE SUPPORTS OF RAILWAY TRANSPORTATION CONTACT NETWORK Russian patent published in 2009 - IPC G01R31/00 

FIELD: physics; measuring.

SUBSTANCE: invention concerns to measurings of physical quantities. Ferro-concrete support influence the variable electromagnetic field created by tractive currents of a moving electric locomotive. Simultaneously register set of signals of interaction of a variable electromagnetic field with materials of a ferro-concrete seat system of the data units erected on the electric locomotive or on a hook-on platform. Shape of them the combined signal, total current function of cross correlation of the combined signal with a gang of reference signals. The peak value of function corresponds to the known state of a seat spotted by a reference signal. It is possible to register a signal from the individual data unit and to total function of cross correlation with a corresponding reference signal. For more accurate fixing of main peak of correlation function change the combined signal, complicating it. Thus the offered expedient allows to check a state of a ferro-concrete seat of a contact network in real time without delays on measurings and processing of effects at the moment of passage of an electric locomotive by a seat, having excluded a spadework, connection of the generator and arrangement of devices on a seat.

EFFECT: decrease in labour input of process of the control of a state of supports of a contact network, reduction of time of gaugings.

2 cl, 2 dwg