脉管制冷机配气装置的改进浙江大学制冷与低温研究所邱利民，赵莉，朱信洪，陈国邦介绍了采用固态定时器及计算机实时控制脉管制冷机进排气的两种实验装置，实现了脉管制冷机压力波频率的无级调节，并可灵活地调整占空比及压力波的相位差，具有一定的推广价值。脉管制冷机... IMPROVEMENT OF VALVE REFRIGERATING DEVICE IN VENTILATED REFRIGERATING MACHINE QIU Limin, ZHAO Li, ZHU Xinhong, CHEN Guobang (Zhejiang University Institute of Refrigeration and Cryogenics) This paper introduces two kinds of experimental devices that use solid state timer and computer to control the inlet and exhaust of pulse tube refrigerator in real time. Regulating the frequency of the cold press frequency stepless adjustment, and the flexibility to adjust the phase difference between duty cycle and pressure wave, with a certain promotional value. Vascular chiller