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本文介绍了用于SQUID测量的10升玻璃钢液氦杜瓦,内胆用DB—1低温玻璃钢制作,杜瓦外壳采用环氧—聚酰胺玻璃钢制造。采用无磁的结构型式。平衡时每天蒸发液氦0.73升(21.44mW)。液氦试验发现:氦气渗透是影响玻璃钢液氦杜瓦性能的重要因素,应予以重视。
This article describes a 10 L FRP liquid helium Dewar for SQUID measurement. The liner is made of DB-1 low temperature FRP. The Dewar shell is made of epoxy-polyamide fiberglass. Non-magnetic structure type. Evaporation of liquid helium 0.73 liters (21.44mW) per day in equilibrium. Liquid helium test found that: helium infiltration is an important factor affecting the performance of FRP liquid helium Dewar should be taken seriously.