研制了自动多波段太阳辐射计, 仪器包含8个光谱通道, 覆盖可见-近红外波段.通过二维转台和四象限跟踪组件, 可实现对太阳直射辐照度、天空辐亮度、气溶胶光学厚度、大气柱水汽含量和臭氧含量的实时自动测量, 并远程控制和传输数据.为减小温度变化对探测器响应的影响, 对光机头部的八通道主体部分进行了温控设计.结合野外环境的实际情况, 对关键部件八通道主体和散热外壳进行了热力学有限元分析.分析结果表明, 主要光学元器件的安装结构满足实际温度变化产生的零件形变需求; 增大外壳的散热面积可以有效提高八通道主体的温控效率, 增强野外环境适应性.仪器在敦煌辐射校正场长期工作, 经受住了风沙、雨水和温差等的测试, 其温控系统的温度维持在25±0.2℃, 表现出良好的稳定性, 验证了温控设计的可靠性.

The automatic multi-band solar radiometer was developed, which contains eight spectral channels, covering visible-near infrared bands. By two-dimensional rotary table and four-quadrant tracking module, the instrument can accomplish real-time automatic measurement of direct solar irradiance, sky radiance, aerosol optical thickness, moisture content of large gas column and ozone content, and can control and transmit data remotely. In order to reduce the influence of temperature change on detector response, temperature control was designed for the eight-channel main part of the optical machine head. Based on the actual situation of the field environment, the thermodynamic finite element analysis of the key parts of the eight-channel main body and the heat dissipation enclosure was carried out. The results show that the installation structure of the main optical components can meet the requirements of parts deformation caused by actual temperature changes. Increasing the heat dissipation area of the enclosure can effectively improve the temperature control efficiency of the eight-channel body and enhance the adaptability of the field environment. Instrument in dunhuang radiation correction field worked for a long time with weathered sand, rain, and temperature, the temperature control system of temperature remain at 25±0.2℃, showing good stability and reliability of the design of temperature control.