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通过测量无限大平板冷却过程中表面及中心的瞬态温度 ,同时确定其导热系数λ ,导温系数α和比热容C。对测量误差进行的分析与计算表明 ,在置信概率 95%下 ,α、λ和C的最大相对偏闻分别不大于 3% ,5%和 7%。
By measuring the transient temperature of the surface and the center of an infinite flat plate cooling process, the thermal conductivity λ, the thermal conductivity coefficient α and the specific heat capacity C are determined at the same time. The analysis and calculation of the measurement error show that the maximum relative relative deviation of α, λ and C is no more than 3%, 5% and 7% respectively under 95% confidence probability.