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本文就PSS-78有关问题,建立一整套意义明确且适合数值计算的数学模型,运用优化设计理论解决这些问题,求得了在ITS-90下PSS-78的最佳修正系数。此方法亦适用于其它行业由于温标变换而引起的公式系数的修正问题。
In this paper, a complete set of mathematical models with definite meaning and suitable numerical calculation are established on the related issues of PSS-78. By using optimization design theory to solve these problems, the best correction coefficient of PSS-78 under ITS-90 is obtained. This method is also applicable to the correction of formula coefficients caused by temperature scale conversion in other industries.