Abstract On the basis of the measured tank height-volume sampling points, a cubic spline curve interpolation and exponential time series analysis method are used. The values generated by the spline interpolation are used to make up the values in the sampling points of the volumetric table. The time series analysis method is used to calculate the unmeasured values at the tank bottom and the tank top. In the actual measurement test, the maximum deviation of the simulation of the cubic uniform B-spline curve interpolation from the actual value is less than 0.3%. The data measured by the time series analysis method provide the reference value, and the two data are forwardly pushed forward with the actual deviation less than 1%.
MA Xin-yu,WANG Jin-tao,SUN Bin, et al. Volumetric Table Fitting Method Based on Interpolation Algorithm and Time Series[J]. Acta Metrologica Sinica, 2019, 40(4): 642-646.
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2019, Vol. 40 
