论文信息 - Free-knot cubic spline modelling in cryogenic thermometer calibration

Free-knot cubic spline modelling in cryogenic thermometer calibration

Abstract In a calibration process of thousands of thermometers, optimization of the experimental design is an important step to save time and costs. In this paper, a modelling procedure is proposed for the construction of a suitable cubic spline approximation of the R – T characteristic of cryogenic thermometers. An iterative algorithm is used to estimate the parameters of a free-knot cubic spline model. Moreover, the minimum number of measurement points and their locations in the experimental design, as related to the spline parameters, are obtained via an heuristic study.

Patrizia Ciarlini | Daniela Ichim

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