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Analysis on comparison experiment results of three kinds of commonly used humidity sensors in meteorology |
Wu Xiangjuan1,2,Chen Weijun1,2,Zhang Tingting1,2,Zhang Hongying1,2,Wang Shaohui1,2 |
1. Ningxia Key Laboratory of Meteorological Disaster Prevention &Mitigation,Yinchuan 750002; 2. Ningxia Atmospheric Observation &Technology Support Center,Yinchuan 750002 |
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Abstract Air humidity is an important meteorological parameter for meteorological observation. The HMP45D,HMP155A and DHC1 temperature and humidity sensors are used commonly in automatic weather station recently. In order to compare the humidity measurement performance of these three types of temperature and humidity sensors,three sensors of each type are selected to do experiments and its data are analyzed. The result shows that the measurement error tendency of these three types of sensors is alike. The measurement accuracy of HMP155A and DHC1 humidity sensor is higher than HMP45D humidity sensor. Apart from 95% humidity points,each point humidity measurement errors of HMP155A and DHC1 are within ±2%RH. And the absolute errors of HMP45D are more than 2%RH.
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Received: 04 December 2015
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