Optical power thermal analyzerSample requirements

● Size: length x width 5x5~20x20, unit: mm, thickness below 2.0mm (including base) is recommended

● Phase transition temperature test sample with optical reflection plane

● Thermal expansion coefficient test sample, with optical reflection dual plane, suitable for thermal expansion coefficient detection of transparent materials

The thermal expansion of the test sample is ≥ 266nm

The film can be selected as an appropriate substrate, and it is recommended to use 20mmx20mmx1.5mm quartz glass or silicon wafer