Electronic optical equipment of long-wave infrared detector directly cooled by pulse tube refrigerating machine

Pulse tube refrigerator according to the present invention relates to electro-optical apparatus directly cooling the long-wave infrared detector, comprising: a pulse tube refrigerator; linear compressor through a connecting pipe end flanges and through the heat regenerator and a pulse tube refrigerator pipe is connected; hot end flange mounted on a vacuum enclosure; phase modulation means coupled to the warm end of the refrigerator through the heat pipe and the end flanges of the pulse tube refrigerator regenerator; cold head via thermal grease or a sheet of soft metal sheet having high thermal conductivity and be made of copper for fixing LWIR devices connected to the cold end of the platform; radiation protective cover is attached to the cold end of the platform; vacuum hood walls are provided with the test window and a measurement system connected to a vacuum pump in communication systems vacuum channels; end cover wall of the vacuum enclosure with an infrared filter sheet; longwave outer fiber to be connected between the device and the measuring system is provided outside the vacuum enclosure through a coaxial shielded wire and sensing lead. The present invention has a simple structure, the cold loss, low operating temperature, easy operation.