The EI701 cell is used to measure the thermophysical characteristics of homogeneous solids and liquids. The experiences vary depending on whether one or two boxes are used.
As part of the testing of liquid or powdery materials (powders, sands), a waterproof frame (option EI700C2) closed by two copper plates in which is placed the liquid or solid to be tested. Thermal diffusivity can be studied with option EI700C1. The temperatures to be measured are in the vicinity of the ambient but it is possible, if necessary, to test the materials up to about 80 ° C. The size of the samples is 270 mm x 270 mm, the thickness being between 30 mm and 70 mm.
a) Practical work of pupils
With a cell with two boxes, depending on the type of box used :