【摘要】 对５０Ｈｚ的高频蓄冷器的交变流动阻力特性进行了系统的实验研究。实验结果表明，其流动特性表现为通过蓄冷器后气体工质的速度波和压力波发生了振幅衰减和相位变化。利用频谱分析揭示了动态参数中存在高频分量，并给出了各参数的基频分量随蓄冷器的结构参数和运行参数而改变的规律。更多还原

【Abstract】 Some experimental data of oscillating pressure drops and phase shift characteristics of regenerators in 50Hz high frequency pulse tube refrigerator are presented.The oscillating flow charactristics appear as pressure drops and phase shifts.The spectrum analysis reveals that there exist some high frequency components in dynamic parameters which will change with the structure conditions of regenerator and the running conditions.更多还原