气象能见度传感器DF320

DF320能见度传感器采用前向散射来测量能见度。它用于测量70公里的天气能见度(气象光学距离)和航空能见度。与LU320亮度计结合使用，它提供跑道视觉距离(RVR)和航空能见度(AV)。DF320前向散射传感器是一种用于能见度测量的传感器。DF320由一个白光光源和一个离光源轴的接收器组成。源和接收机视野的交集定义了分析量。这个体积中的悬浮粒子将光线散射到各个方向。即使在恶劣的天气条件下，它也能在大范围(高达70公里)的测量中提供准确和可追踪的值。与亮度计相关联，它适用于航空气象用途(跑道视觉距离- rvr，和航空能见度- av，根据icao标准定义)。它也可用于其他应用，如天气气象，道路或港口。 To perfectly meet measurement height asrequested in ICAO rules, the DF320 uses a 4meters frangible tilting mast with adjustablemeasurement heads height. The meteorological optical range (MOR) isdetermined using the flux measurement of theforward scattered light. Low sensibilitydepending on the causes of the reduction ofthe visibility (fog, rain, snow hail) is obtainedby a low frequency modulation of a spreadspectra light in a large volume, avoiding allscintillation effects.