METHOD OF MEASUREMENT OF THREE LOAD COMPONENTS IN RAIL CROSS SECTION UNDER CONTACT INTERACTION WITH WHEEL OF RAIL MOBILE COMPOSITION Russian patent published in 2017 - IPC G01L5/16 

FIELD: measuring equipment.

SUBSTANCE: invention is designed for simultaneous measurement and recording of three components of the total load - vertical force, lateral force and tipping torque acting in the selected cross-section of the rail when it interacts with the wheel of the rolling stock. The method consists in increasing the accuracy of the measurement, the strain gauges glued in the four zones of the rail neck are connected to three measuring bridges, each bridge is connected to a separate measuring channel of the strain gauges, the calibration is carried out in accordance with the three-factor experiment plan by combinations of input factors - vertical force, Lateral force and tipping torque. The calibration coefficients are determined by multiplying the matrix of the experimental plan by the matrix of the right generalized inverse of the response matrix, the systematic measurement errors are determined as the difference between the applied and restored response values of the factors in the plan. The results of the measurement are presented as a combination of the response value of the input factor and the maximum value of the systematic error obtained with the calibration.

EFFECT: increasing the accuracy of measurements and reducing the systematic error of measurements.

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