Abstract：With the computer to simulate LED spatial illuminance distribution and LEDs total luminous flux measurement process of a goniophotometer,showing the effect of different sampling interval on the measuring of four types of LEDs,whose intensity spatial distribution curves are of quasi-Lambert,tomato,double-wings,and narrow beam respectively. Axial or non-axial symmetric types are both considered. The calculation results show that,for common LED light source,a usage is recommended with a 2° interval and amount of sections greater than 12. The systematic error of sampling interval with a goniophotometer can be controlled within 0.3%.
赵伟强,刘慧,刘建,杨臣铸. 采样间隔对分布光度计测量LED总光通量的影响[J]. 计量学报, 2015, 36(1): 22-25.
ZHAO Wei-qiang,LIU Hui,LIU Jian,YANG Chen-zhu. Effect of Sampling Interval on the Measurement of the Total Luminous Flux of LED. Acta Metrologica Sinica, 2015, 36(1): 22-25.
2015, Vol. 36 
