摘要
本文研究了TBQ-1型总日射表的倾斜效应,给出了实验测量的总日射表在各种倾角和不同方位时的倾斜效应。并根据此表的结构,从感应面的热平衡出发,对其各类传热方式随倾角的改变进行理论分析,得到了表内对流换热的改变是倾斜效应的主要原因的结论。最后提出改进总日射表结构以减少倾斜效应的建议。
The tilt response of Model TBQ-1 pyranometer is studied and theexperimentally determined tilt response under various inclination angles anddifferent azimuthal angles are given, Theoretical analysis of different heattransfer processes varying with tilt angle is presented according to the struc-ture of pyranometer and the heat balance of the sensor surface.The conclusionshows that the variation of convective heat transfer inside the pyranome-ter is the main cause of tilt response. Finally, suggestions for reducing tiltresponse and making calibration available are proposed.
基金
国家自然科学基金
关键词
总日射表
倾斜效应
方位效应
pyranometer
tilt response
azimuthal effect
