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The rate of evaporation of seawater droplets in the airsea boundary layer can be estimated by its salinity change compared to the sea surface salinity. A micro-chemical method based on Farlow (1954) is developed for quantitative determination of the salinity of an individual droplet without the error due to further evaporation after sampling. A halide ion-sensitive sampling surface is prepared by colloidally dispersing brown silver dichromate into the gelatin layer of a commercially available film. The reaction of soluble chlorides with the silver salt leaves a clear white halo with diameter a on the brown film to reveal the volume of the droplet- After the film is developed in a water vapor saturated atmosphere, the halo grows to diameter d with the original as the embryo to indicate the quantity of chloride ion involved in the action. The ratio of d/(a ) is a function of the salinity of the droplet. The method can be used to determine the salinity of seawater droplet of 10 to 10 ~10 gram. Details of t 相似文献
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目前国内外的湿度计品种繁多,测湿方法各异。但这些湿度计都不能测量大风时的海面湿度。因为大风时海面波涛汹涌,近海海面空气水汽含量相当大,且湿度的变化也很大,这时在甲板上作业非常困难,各种需现场观测的湿度计都无法使用,迄今也未曾见过测量高海况、大湿度的湿度计的报道。本文介绍一种用于高海况海面湿度测量的微型湿度计的设计与研制。１设计１．１传感器件的选取电子湿度传感器可分为：（１）电容式;（２）电阻式;（３）其他方式［１］。在高海况时,无论是风速、气压,还是海表面的湿度的变化都是很大的。这时就要选择响应… 相似文献
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微型电子温度计的研制与实验 总被引：1，自引：0，他引：1
目前国内外的湿度计品种繁多,测湿方法各异.但这些湿度计都不能测量大风时的海面湿度.因为大风时海面波涛汹涌,近海海面空气水汽含量相当大,且湿度的变化也很大,这时在甲板上作业非常困难,各种需现场观测的湿度计都无法使用,迄今也未曾见过测量高海况、大湿度的湿度计的报道.本文介绍一种用于高海况海面湿度测量的微型湿度计的设计与研制. 相似文献
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