用高分子湿度传感器测定Pulkovo VKM-100多程真空室中的水蒸气含量
The Determination of the Water Vapor Content in the Pulkovo VKM-100 Multipass Vacuum Cell Using Polymer Sensors of Humidity
摘要：
在实验室条件下的水汽光谱研究（分子常数的测定、光谱透射函数的测量）中，测量时间内的水汽量是最基本的参数之一，必须准确测定。我们讨论的应用程序，用于此目的的聚合物传感器的湿度由Praktik-NC（莫斯科）和Pulkovo VKM-100多通道真空细胞中使用。这些传感器在Lindenberg气象台（德国）的实验室中进行了检查，通过比较它们的读数与标准测量装置的读数，获得各种相对湿度、压力和温度值。我们还在装有盐溶液的盒子中进行了相对湿度的测量，其中对应于给定溶液的相对湿度保证了百分之零点几的精度。对传感器的实验室检查结果和使用Pulkovo池进行的扩展测量集的分析可以得出结论，在相对湿度40- 80%的范围内进行测量时，达到了水蒸气含量测量的~5%准确度。指出了进一步提高测量精度和延长相对湿度测量时间间隔的途径，从而可以实现精确测量。
英文摘要：
In spectral studies of water vapor under laboratory conditions (determination of molecular constants, measurement for spectral transmission functions), the amount of water vapor in the time of the measurements is one of the most essential parameters, which should be determined accurately. We discuss the application for this purpose of polymer sensors of humidity manufactured by Praktik-NC (Moscow) and used in the Pulkovo VKM-100 multipass vacuum cell. These sensors were examined in the laboratory of Lindenberg Meteorological observatory (Germany) by comparison between their readings and those of standard measuring devices for various values of relative humidity, pressure, and temperature. We also carried out measurements of relative humidity in boxes with saline solution, in which the relative humidity that corresponds to a given solution is guaranteed with the accuracy of several tenths of percent. The analysis of the results of the laboratory examination of the sensors and extended sets of measurements made with the Pulkovo cell made it possible to conclude that in measurements in the interval of relative humidity 40-80%, the ~5% accuracy of the measurements for the water vapor content is reached. Further paths are indicated for the increase of the accuracy of measurements and extending the interval of the relative humidity, in which accurate measurements may be carried out.
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