低温液体冻制水三相点瓶的影响因素研究  

The Study of the Influence Factors for Freezing Water Triple-Point Cells with Cr

作　　者：晏天 梁杰 钱飞 李庆超 Yan Tian;Liang Jie;Qian Fei;Li Qingchao

机构地区：[1]国家海洋局南海标准计量中心,广东广州510715

出　　处：《计量与测试技术》2018年第1期31-33,36,共4页Metrology & Measurement Technique

基　　金：国家海洋局南海分局海洋科学技术局长基金资助项目(1634)

摘　　要：介绍了用低温液体冻制水三相点瓶的方法。研究了不同冻制温度条件下水三相点瓶的老化时间;同时,研究了不同保存温度对低温液体冻制的水三相点瓶的水三相点值的影响。结果表明:通过低温液体冻制法冻制的水三相点瓶,老化时间不超20min,不同冻制温度条件下,老化时间相差不超10min,最佳冻制温度为-6℃;通过低温液体冻制法冻制的水三相点瓶,在0.006℃条件下能保存超10d以上,并且水三相点值不发生飘移。This thesis introduces a method for freezing Water Triple-point Cells with Cryogenic Liquid.The bum-in times of Water Triple-point Cells under different freezing temperatures was studied.Meanwhile,the influ-ence of different storage temperatures upon the Water Triple-point value of Water Triple-point Cells frozen by cryogenic liquid was studied.The results show that the bur-in times of Water Triple-point Cells frozen by ero-genic liquid freezing method do not exceed 20min,the bur-in times differ by no more than 10min under different freezing temperature conditions,and the optimum freezing temperature is-6°C.Water Triple-point Cells,frozen by cryogenic liquid freezing method,can be stored over 10d under the condition of 0.006°C,meanwhile,the Wa-ter Triple-point value does not drift.

关 键 词：低温液体 水三相点瓶 水三相点值 温度 

分 类 号：O514.2[理学—低温物理]