氦製冷機 的英文怎麼說
中文拼音 [hàizhìlěngjī]
氦製冷機
英文
helium refrigerator-
Further experiments of a 4k two - stage pulse tube cooler for operation of a josephson voltage standard
液氦溫區脈管製冷機的優化實驗Investigations have been made on the influence of the heating power, working pressure, stack packing ratio, and the opening of the orifice valve and the double - inlet valve on the performance of the system
以氦氣為工質，獲得了119 . 7k的脈管無負荷製冷溫度，在國內首次用熱聲機械進入低溫溫區。With the helium as the working gas, we attained 119. 7k the refrigeration temperature of the pulse tube. this is the first time that it enters the cryogenic field using the thermocaoustic engine in china. 2 ) the application of binary noble gas on tadptr after the discuss of the possibility of applying binary noble gas on tadptr, we give the way to calculate the prandtl number of the binary noble gas
混合工質應用於熱聲驅動的脈管製冷機對惰性氣體二元混合工質在熱聲機械中的可能應用進行了探討，給出了混合工質的普朗特數等參數的計算方法，並進行了採用氦-氬混合工質的熱聲驅動脈管製冷機的實驗研究。Especially, in the filed of high tc superconductor, the technology that the cryocooler directly cool the superconducting system has changed the traditional cooling manner, which adopts the method of low tc fluid helium ' s convection and boiling to exchange the heat. it mainly depends on the cooling manner of conducting heat through the interfacial layer between the material of superconductor and non - superconductor ( such as cu, isolator, etc )
特別是在高溫超導領域中，由於製冷機直接冷卻技術改變了傳統的靠低溫液氦對流、沸騰換熱的冷卻方式，主要依靠超導材料與非超導材料（如銅、電絕緣材料等）固體間的接觸導熱冷卻方式，固體間界面熱阻成為影響導熱性能的關鍵因素之一。分享友人