Abstract
The pulse tube cryocooler is which doesn't need a moving parts in the expansion space and the advantage that said with improvement of reliability by low vibration is given. But it becomes difficult to predict performance of the cryocooler because there is not a piston when becomes the design method. In late years, analysis technique by Thermoacoustics theory has been developed as the tool which understood the pulse tube cryocooler at the overall. Moreover and, as a simple method, Matsubara likens gas in pulse tube to solid piston, and develops equivalent PV method calculating work in the expansion space. But, as pulse tube design tool, there are many points to be still not enough. So we select numerical calculation by 3rd Order as analysis technique to do design development of pulse tube cryocooler by this report, and report it because evaluation examined behavior of inside gas by a difference of the phase controller.
