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为了研究脉管制冷机的性能特征，本研究课题业已完成了多项实验。结果发现，瞬态或起动期间的冷却时间ｔｃ由脉管壁时间常数τｐｔ所控制，且基本型脉管（ＢＰＴ）制冷机的动态特性可作为一阶系统处理。在稳态运行中，已发现冷端温度ＴＬ随τＰｔ而变化，并且冷负荷ＱＬ随τｐｔ增大而单值增大。这表明，由气体从冷端至热端所泵送的热量随ｈｐｔ的下降而增大（即气体与壁之间的能量交换较小）。从而表明，脉管壁的储热或放热过程对ＢＰＴ制冷机的性能具有消极的作用。还以实验方法发现，脉管内气体的压缩／膨胀过程可以说明ＢＰＴ制冷机的性能，这些过程类似于布雷顿循环，不过介于等温和绝热过程之间。本文实验还表明，脉管制冷机在瞬态和稳态的性能主要地是由脉管壁时间常数τｐｔ，所控制。
In order to study the performance characteristics of pulse tube refrigerator, a number of experiments have been completed in this research topic. As a result, it was found that the cooling time tc during transient or start-up is controlled by the vessel wall time constant τpt and that the dynamic characteristics of the basic-vessel (BPT) refrigerator can be handled as a first-order system. In steady-state operation, it has been found that the cold junction temperature TL varies with τPt, and the cold load QL increases with τpt and the single value increases. This shows that the amount of heat pumped by the gas from the cold end to the hot end increases with decreasing hpt (ie, less energy exchange between the gas and the wall). Thus, the heat storage or exothermic process of the vessel wall has a negative effect on the performance of the BPT refrigerator. It has also been experimentally found that the process of compression / expansion of the gas in the vasculature can characterize the performance of the BPT chiller, similar to a Brayton cycle, but between isothermal and adiabatic processes. The experiments in this paper also show that the transient and steady state performance of pulse tube chillers is mainly controlled by the vessel wall time constant τpt.