摘要
为了测试基于积分球原理的新型日照计样机的性能及测量准确度,分别在3个特殊天气条件下对积分球日照计和双轴跟踪辐射表的实测秒数据进行曲线拟合和对比,并对两者测得的日照时数进行统计分析。结果显示:积分球日照计和双轴跟踪辐射表测得的日照资料在不同天气条件下存在着差异,在有云、能见度较好的晴天条件下,由于两者灵敏度的差异,太阳辐射较强,双轴跟踪辐射表测得的辐照度明显大于积分球日照计测得的辐照度。从相关性和统计分析看来,总体上两者相关性较好,趋势基本吻合。
In order to test new heliograph prototype based on the principle of integrating sphere, this paper gives a curve fitting and comparative analysis of the second data measured by integrating sphere heliograph and two-axis tracking radiation table in three special weather conditions. The sunshine duration measured by integrating sphere heliograph and two-axis tracking radiation table is statistical analyzed. The results show that there are differences of sunshine duration measured by integrating sphere heliograph and two-axis tracking radiation table in different weather conditions. When there are clouds,good visibility in sunny day and stronger solar radiation, the irradiance measured by two-axis tracking radiation table is bigger than the the irradiance measured by integrating sphere heliograph because of the difference of sensitivity. On the whole, there is a good correlation and consistent trend for integrating sphere heliograph and two-axis tracking radiation table from the correlation and statistical analysis.
出处
《气象水文海洋仪器》
2015年第1期39-45,共7页
Meteorological,Hydrological and Marine Instruments
基金
GYHY201106039"日照自动观测仪器研制"资助
关键词
积分球
新型日照计
双轴跟踪辐射表
秒数据
拟合
integrating sphere
new heliograph
two-axis tracking radiation table
second data
fitting
