Hot Disk导热系数仪/Hot Disk 热常数分析仪

本文介绍了Hot Disk瞬态平面热源法测试原理，以及采用Hot Disk瞬态平面热源法测试建筑材在不同含水率条件下导热系数的变化趋势。

In this application note, samples made out of a polycarbonate, Lexan 123 R, matrix reinforced with different amounts of nanofibres from Hyperion Catalysis (FIBRIL) are tested with the Hot Disk Thermal Constants Analyser and the anisotropic module. The fibers lie mainly in the plane of the sensor.

本文应用瞬态平面热源技术（Transient Plane Source Method, TPS）对热导率范围从0.028-166W/mK 之间的几个标准样品进行了测试，得到的数据与采用其他标准方法得到的数据非常吻合。实验结果表明，TPS 技术非常适合于测试固体材料的热扩散系数和热导率。它不需特别的样品制备，与其他方法相比，不仅精度较高，而且测试速度更为快捷。

In this Application note four different milk products with fat content (given by the manufacturer) <0.1 %, 0.5 %,1.5 % and 3 % were compared in order to investigate if the Hot Disk Thermal Constants Anlyser can be used to determine fat content in diary products.

The Hot Disk Thermal Constants Analyser can be used for measurements on anisotropic samples such as stacks of metal sheets. In this application note sheets of transformer iron core samples were measured with both the slab technique in order to obtain the individual plate’s thermal conductivity, diffusivity and specific heat capacity and the anisotropic technique to find the properties of a stack of these plates.