用于校准能见度仪的标准散射体定标系统中光学系统的设计（英文）

Optical System Design of the Standard Scattering Plate Calibration System Used in Calibration Visibility Meter

为了实现校准能见度仪中标准散射体的快速准确定标,建立了用于校准能见度仪的标准散射体的定标系统.研究了定标系统中全景成像折反光学系统的设计方法.根据抛物面反射镜的光学特性推导出抛物面面型的计算方法.根据定标系统对光学系统的要求,完成全景成像色度计光学系统的设计.对全景成像折反光学系统进行建模仿真并设计实验验证光学系统的设计与仿真结果的正确性.实验结果表明:全景成像折反光学系统的空间检测俯仰角范围为0°~90°,方位角范围为0°~360°,且最小角分辨率为1°,与仿真结果基本一致,满足用于校准能见度仪的标准散射体定标系统中光学系统的设计要求.

In order to realize the rapid and high precision calibration of standard scattering plate,the standard scattering plate calibration system used in calibration visibility meter was established.The design method of panoramic imaging colorimeter optical system of the calibration system was researched.Based on the optical properties of parabolic reflector,the calculation method of paraboloid surface was deduced.Then,according to the requirement of the calibration system optical system,the design of optical system of panoramic imaging colorimeter optical system was completed.Finally,the panoramic imaging colorimeter optical system was modeling analyzed,and an experiment was designed to verifies the correctness of the design and simulation results.The experiment shows that the spatial measuring range is in the range of incident angle from 0° to 90° and azimuth angle from 0° to 360°;and the angular resolution is 1° which satisfy the design requirements of the optical system of the standard scattering plate calibration system used in a calibration visibility meter.