CAJ | 학술논문

为了减少环境对激光传输的干扰，依据M ie散射原理，提出了激光检测法．设计密度可控的密闭试验箱，选择波长为0．65μm的激光光束通过不同浓度粉尘的环境，在分布近似均匀的模拟环境中，设计了传输模型，分析了粉尘环境中激光的传输规律．研究结果表明：当粉尘浓度在100～230 g/m3之间时激光信号衰减最快，当浓度大于230 g/m3之间时，激光信号衰减基本保持不变．实验结果的拟合曲线与模型曲线相吻合，验证了激光在不同粉尘浓度中的衰减特性和传输模型的正确性．
위료감소배경대격광전수적간우，의거M ie산사원리，제출료격광검측법．설계밀도가공적밀폐시험상，선택파장위0．65μm적격광광속통과불동농도분진적배경，재분포근사균균적모의배경중，설계료전수모형，분석료분진배경중격광적전수규률．연구결과표명：당분진농도재100～230 g/m3지간시격광신호쇠감최쾌，당농도대우230 g/m3지간시，격광신호쇠감기본보지불변．실험결과적의합곡선여모형곡선상문합，험증료격광재불동분진농도중적쇠감특성화전수모형적정학성．
In order to reduce the influence of environment on laser transmission ,based on Mie scatter principle ,a method of laster detection is presented .A closed test box ,in w hich density is controllable ,is built .0 .65 μm laser beam is selscted to pass the environment of different evenly distributed dust concentration .The transmission model in simulation dust environment is designed and the principle of laser transmission is analized .The results show that the attenuation of laser signal is the fastest when the dust concentration is between 120~230 g/m3 ,it is hardly changed when the dust concentration is greater than 230 g/m3 . The results point out that the fitting curve is identical with model curve ,which demonstrates that the accuracy of attenuation characteristics and transmission model of laser in different dust concentration .