| 气象用湿度传感器低温测量探讨 |
| Analysis of Low Temperature Messurementon Meteororlogical Humidity Sensor |
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| 中文摘要: |
| 通过湿度传感器的低温性能测试研究，掌握温度变化对湿度测量准确度的影响量。通过随机挑选的3支湿敏电容湿度传感器在实验室不同的温度点下开展湿度全量程测试，在测试温度低于0℃时，计量标准的两种计算方法-标准方法和WMO法，与之进行比对分析，验证低温时湿度测量的两种计算方法的相关性和差异性，进而定量地分析0～-40℃环境下湿度计量的温度影响量。 |
| 英文摘要: |
| Since the vast territory of China, the temperature difference between North and South is very large especially in the chill winter. The North sites temperature is under -40℃.In order to master the effect of humidity accuracy caused by the environment temperature changing, random select would be done as below: the 3 humidity sensors of type 155 as the standards was selected to do the comparison on the different temperature points by using the two-pressure humidity generator. The measurement accuracy comparison of the 3 Humidity sensors and chill drew-point is used to prove the relative and difference between the two calculating methods on the humidity measurement and then to analysis the temperature correction of humidity measurement at 0～-40℃. |
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| 中文关键词: 相对湿度 低温影响 湿度传感器 饱和水汽压 过冷水 |
| 英文关键词:relative humidity influence of low temperature Humidity Sensor saturated vapor pressure Supercooled water |
| 基金项目: |
| DOI：10.11823/j.issn.1674-5795.2017.01.10 |
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