FIELD: instrument making.
SUBSTANCE: invention relates to instrument making, in particular to measuring devices for measurement and registration of forces of interaction between a wheel and a rail; it can be used for detection of defective sections of a track with precise fixation of their location. The method consists in installation of strain gauges on a wheel disc with subsequent processing of their output signals coming during movement of a car along a railway track, while processing of output signals for determination of values of vertical and lateral forces of interaction between the wheel and the rail for any time interval is performed through addition of multiplications of constant coefficients being part of a pseudo-inverse matrix to an influence matrix, composed when carrying out four separate calibration loadings, by values of output signals from installed strain gauges. The device contains strain gauges installed on the inner side of the wheel disc and connected to measuring circuits, which, through multifunctional measuring equipment for collection and transmission of information, transmit, via a radio channel through a router and a signal reception module, digitalized signals from strain gauge circuits to an onboard computer via a wireless network Wi-Fi. At the same time, strain gauges are installed on inner sides of wheel discs on four concentrical circumferences with an angular pitch of 22.5° in such a way that circuits of strain gauge connection allow for addition of digitalized signals from strain gauges located on one of four diameters of each inner wheel disc and obtaining four output signals in the sum.
EFFECT: increase in the accuracy of determination of a location of a defect on a railway track due to the use of a continuous method for registration of dynamic processes of interaction between a wheel and a rail and navigation devices.
2 cl, 3 dwg
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