Abstract The paper presents an evaluation of the combined relative uncertainty of the result of direct step temperature measurements aimed at evaluation of the indirect measurements of the specific thermal capacity of the heat insulating concrete by means of a pair of resistive cable thermometers fitted with Pt100 temperature sensors and integrated into a computer-controlled calorimetric chamber. In particular, it is a proposal of evaluation of the overall relative uncertainty of the measurement of partial temperatures measured in equidistant time steps, in a relatively wider time interval. In practice, the uncertainty of the result of step temperature measurements is most often declared only by the instrument uncertainty specified by the manufacturer. The exact evaluation of the result of the measurements of thermal and temperature material parameters measured by the calorimetric comparison method is required by the fact that the investigated samples are made of newly designed non-tabulated building materials and that the measurements are made by a prototype device.

中文翻译：

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原型半自动量热室测量结果的综合相对不确定度

摘要 本文介绍了对直接阶梯温度测量结果的组合相对不确定度的评估，旨在通过一对装有 Pt100 温度传感器的电阻电缆温度计评估隔热混凝土的比热容的间接测量。并集成到计算机控制的量热室中。特别是，它建议在相对较宽的时间间隔内，对在等距时间步长中测量的局部温度的测量的整体相对不确定性进行评估。在实践中，阶梯温度测量结果的不确定度通常仅由制造商指定的仪器不确定度来声明。