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本文从总日射表传感器的热平衡出发,分别对黑白型和全黑型总日射表内各种传热方式随倾角的变化进行了分析和讨论,并得出总日射表内对流换热随倾角的变化是造成倾斜效应主要原因的结论。文中还指出了影响总日射表体内对流换热变化的各项因素,并对黑白型表的倾斜效应大于全黑型表以及首次发现的方位和辐照水准对倾斜效应的影响等原因作了解释。
In this paper, based on the thermal balance of the total pyranometer sensor, the changes of various heat transfer modes in the black and white type and the total black type pyranometer are analyzed and discussed with the change of the dip angle, and the results show that the convection heat transfer with the dip angle Change is the main reason for the tilt effect. The paper also points out the factors affecting the change of convection heat transfer in the total solar radiation meter, and explains why the tilt effect of the black-and-white type meter is greater than that of the all-black type meter and the effect of the first-discovered azimuth and irradiation level on the tilt effect .