无阀脉管制冷机的实验研究

Experimental Study of Valveless Pulse Tube Refrigerator

采用直流电机驱动的无阀压缩机，在双向进气型脉管制冷机上取得了４６．８Ｋ的无负荷制冷温度。对脉管制冷机的压力波进行了测试，在分析回热损失、脉管与回热器相位差等方面获得了一些有益的结果。

This paper describes the experimental results of a double-inlet pulse tube drived bya D。C。 motor. The pressure waves at the hot ends of the pulse tube and the regenerator havebeen measured.The regenerator loss and the phase difference between the hot ends of the pulsetube and the regenerator have been analysed.And the lowest temperature of 46.8 K wasachieved。