Uncertainty of heat capacity measurements with differential scanning calorimeters
Uncertainty of heat capacity measurements with differential scanning calorimeters
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DOI：
10.1016/s0040-6031(01)00730-4
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发表时间：
2002-01-31
影响因子：
3.5
通讯作者：
Rudtsch, S
中科院分区：
文献类型：
--
作者：
Rudtsch, S
《测量不确定度表达指南》（GUM）用于确定差示扫描量热法（DSC）热容测量的不确定度。根据本指南的不确定度表示方法为实验结果、方法和仪器的比较提供了统一的基础。根据功率补偿差示扫描量热计在玻璃陶瓷上的测量结果，采用常用的评定方法，通过实例给出了基于ISO指南的不确定度分析。热容测定的相对扩展（k = 2）不确定度为U(c(P))/c(P) = 1.5%。(C) 2002 Elsevier Science B.V.版权所有
The ''Guide to the Expression of Uncertainty in Measurement'' (GUM) is used to determine the uncertainty of heat capacity measurements by means of differential scanning calorimetry (DSC). The approach to the expression of uncertainty according to this guide gives a uniform basis for the comparison of experimental results, methods and instruments. On the basis of measurement results obtained with a power-compensated differential scanning calorimeter on a glassy ceramic and using common evaluation methods, an uncertainty analysis based on the ''ISO Guide'' is presented by an example. The relative expanded (k = 2) uncertainty of the heat capacity determination is U(c(P))/c(P) = 1.5%. (C) 2002 Elsevier Science B.V. All rights reserved.