| 摘要 |
PURPOSE:To make it possible to perform a severe thermal shock test at 0 deg.C or lower simply, by inputting liquid nitrogen in a container made of foamed styrol and the like, and directly immersing a sample under test in the liquid nitrogen. CONSTITUTION:Liquid nitrogen 2 is inputted in a container made of foamed styrol and the like. A sample under test 3 is directly immersed in the liquid nitrogen. When a bias power source 5 is connected to the sample under test 3 through lead wires 4, a low temperature bias test can be performed under the severe conditions at 0 deg.C or lower. The thermal shock test can be performed simply under the more severe conditions than cold water by directly immersing the material under test into the liquid nitrogen in this way. |
