直接辐射表性能测试研究

Research on performance testing of pyrheliometers

根据WMO关于直接辐射表性能指标的要求,提出了针对响应时间、零点偏置、温度响应、倾斜响应和非线性误差的测试方法。首先介绍了测试条件,然后利用测试设备,结合上述性能指标定义,详细分析了对应的测试方法过程,最后,对四种不同型号的直接辐射表的性能测试数据进行分析研究,结果显示,上述测试方法科学可行,被测直接辐射表均达到了ISO一级表的要求,研究成果对直接辐射表性能测试,了解仪器特性,改进产品质量和提高太阳辐射测量具有重要意义。

According to the performance requirements of WMO about pyrheliometers, methods for testing response time, zero bias, temperature response, tilt response, and nonlinear response error are proposed. Firstly, testing conditions are introduced, and then using testing equipment, combined with the performance definitions, testing methods and processes corresponding to each performance are analyzed in detail. Finally, testing data for four different type pyrheliometers are analyzed, the results showed that the testing methods are scientific and feasible, four pyrheliometers under tested are all reached the ISO requirement of first class level, such performance research results of pyrheliometers are of great significance for understanding the instrument characteristics, developing the product quality and improving the solar radiation measurement.