According to JJG(Railway)210-2020 Calibrater for measuring instrument for contact wire geometric parameter,in the process of verifying the recurrence value of the simulated mast gauge of the Ⅱ type calibrater for measuring instrument for contact wire geometric parameter,a formula needs to be used to calculate the recurrence value of the simulated mast gauge.These calculation formulas not only require a large number of parameters to be measured,involve complex and computationaly intensive calculations,but also uncertainty components in the verifica-tion results is introduced.On the basis of analyzing the composition of the Ⅱ type calibrater for measuring instrument for contact wire geometric parameter and the calculation formula for the recurrence value of the simulated mast gauge,the simplified calculation formula for the recurrence value of the simulated mast gauge is studied.After verification,using the simplified calculation formula and the calculation formula in JJG(Railway)210-2020,the recurrence value of the simulated mast gauge are equal.By using simplified formulas,not only can the measurement parameters be reduced,the measurement parameters are more convenient,the calculation process is simplified,but also can the accuracy of the calibration results be improved.
Measuring Instruments for Contact Wire GeometriyCalibraterMast GaugeCalculation Formula
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