实验测量了脉冲管制冷机实际工作过程中的动态速度波和压力波,得出了小功率情况下及制冷机降温过程中速度和压力波动的幅值和相位的一些规律,对脉冲管制冷机内部气体交变流动的研究和数值模拟以及制冷机的设计具有参考价值。
Dynamic velocity and pressure waves are measured in a true pulse-tube cryocooler. Characteristics of phase shift angles and amplitudes of velocity and pressure waves are gained in different conditions. The results are meaningful for numerical simulation and design of pulse-tube cryocoolers.