OVERVIEW OF FREE PISTON STIRLING CRYOCOOLERS FOR HOT DETECTORS

Due to the advantages of low vibration and long MTTF， Free Piston Stirling Cooler（FPSC）can be uesed to cool down the infrared detectors. With the development of the High Operation Temperature detector（HOT detector）， reduction of size， weight， power along with higher performance and lower price is needed for the stirling cooler， which can be defined as micor-miniature stirling cooler. In this paper， we summarized the development of the micro-miniature FPSC at home and abroad in recent ten years， and introduced it’ s design balance. One novel micro-miniature FPSC prototype developed by Kunming Institute of Physics is also shown in this paper.