| 摘要 |
The present specification discloses a refrigerant-free cryogenic testing device. The refrigerant-free cryogenic testing device comprises: a chamber; a cylinder vessel having a lower cylinder vessel arranged in one side inside the chamber and an upper cylinder vessel between the lower cylinder vessel and the upper inner wall of the chamber; a specimen compression fixating part arranged inside the cylinder vessel; a cryocooler extended from the outside to the inside of the chamber around the other side of the chamber; a radiation shield to cover the cryocooler and a lower cylinder; and a cooling transmission part which is arranged inside the radiation shield and is connected to a space between the cryocooler and the cylinder vessel to transmit cooling from the cryocooler to the cylinder vessel in order to test a specimen inside the chamber using cryogenic cooling. |
