CAJ | 학술논문

为了研究探测光波长的漂移对能见度测量的影响。从Koschmieder经验公式的定义出发，根据实验测得400 nm～1100 nm波段的气溶胶透过率，分析研究探测光波长漂移对能见度测量结果的影响。结果表明，能见度测量的相对误差与探测光波长和波长的漂移范围以及气溶胶消光特性有关，能见度测量的相对误差随着探测光的波长漂移范围线性增大，随着波长漂移范围的增大，各个波长的能见度测量相对误差线性增大的速率不同，对于相同的波长漂移范围，使用不同的探测光波长产生的能见度测量相对误差不同。对于某一大气环境，使用特定的波长而且中心波长稳定的光作为探测光可以明显减小由于探测光波长漂移引起的能见度测量相对误差。
위료연구탐측광파장적표이대능견도측량적영향。종Koschmieder경험공식적정의출발，근거실험측득400 nm～1100 nm파단적기용효투과솔，분석연구탐측광파장표이대능견도측량결과적영향。결과표명，능견도측량적상대오차여탐측광파장화파장적표이범위이급기용효소광특성유관，능견도측량적상대오차수착탐측광적파장표이범위선성증대，수착파장표이범위적증대，각개파장적능견도측량상대오차선성증대적속솔불동，대우상동적파장표이범위，사용불동적탐측광파장산생적능견도측량상대오차불동。대우모일대기배경，사용특정적파장이차중심파장은정적광작위탐측광가이명현감소유우탐측광파장표이인기적능견도측량상대오차。
In order to study the influence of detection wavelength drift on visibility measure-ment ,based on the definition of Koschmieder empirical formula and the aerosol transmittance of 400 nm~1 100 nm waveband measured in experiment ,the influence of detection wavelength drift on visibility measurement was analyzed .The results show that the relative error of visi-bility measurement is related to detection wavelength ,range of detection wavelength drift and aerosol extinction characteristics .The relative error of visibility measurement increases with the range of detection wavelength drift in linearity . With the increasing range of detection wavelength drift ,the linearly increasing rate of the relative error in visibility measurement at each wavelength is different .Under the same range of detection wavelength drift ,the visibility measurement error is different by using the different detection wavelengths .In a certain atmos-pheric environment , the relative error of visibility measurement caused by detection wave-length drift can be reduced obviously by using the light of a specific center wavelength with small drift as the detecting light .