一种海冰密度测试液体温粘特性的统计参数

Statistical Parameters of the Temperature-viscosity Behavior of a Liquid Used for Sea Ice Density Measurement

针对海冰密度排液法测试中需要一种冰点低且粘度合适的液体,发现蜂蜜-盐水溶液以其不冻结、粘度高、易储存等特点成为最具潜力的理想"标靶"液体.通过配制不同蜂蜜与盐水体积百分比浓度的溶液,测试这些蜂蜜-盐水溶液在不同温度下的粘度.利用正交试验测试数据,结合文献报道的理论及数学表达式,统计分析了溶液粘度分别同温度、浓度的特征;最后建立了描述蜂蜜-盐水溶液粘度同温度和浓度之间的综合统计关系.能够用来计算在特定温度范围内,所要求理想粘度对应的蜂蜜-盐水溶液的体积百分比.由此配制的蜂蜜-盐水溶液可以成为排液法准确测量不规则海冰样品密度的核心技术支撑.

For searching a suitable liquid with lower freezing point and viscosity which is nec- essary to develop for the sea ice density measurement by using drain away liquid method, the honey-salt solution with non-freezing, high viscosity, easy storage is determined to be the most potential ideal ＂target＂ liquid. The solution with different volume percentage concentration of honey and salt water were made, and their viscosity was measured at different temper- atures. Using the orthogonal test data and the theory and mathematical expressions from literatures, the statistical relations between solution viscosity and temperature, concentration were analyzed respectively. Finally comprehensive statistical relation among honey-salt solu- tion viscosity, temperature and the volume percentage concentration was established. This relationship can be used to calculate the corresponding honey-salt solution volume percentage concentration for a known temperature range and ideal viscosity. Based on the relation, the suitable honey-salt solution can be prepared and the preparation of the solution is the kernel technology in the drain away method of accurate measurement of the density of an irregular sea ice sample.