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一、引言采用体视定标的光学测距机,其测标的制造误差直接影响着测距的精度。例如,测距机有下列技术性能: 基线b=500mm 测标物镜f’=150mm 放大倍率Γ=10 测距范围3000～4000m 由计算可知: 线视差值l(3100m)=24.19μm 线视差值l(3200m)=23.44μm 线视差值l(3300m)=22.73μm 所以:△l_1=l(3100m)-l(3200m)=0.75μm △l_2=l(3200m)-l(3300m)=0.71μm
I. INTRODUCTION Optical range finder with stereoscopic vision calibration has a direct impact on the accuracy of distance measurement. For example, the range finder has the following technical properties: Baseline b = 500mm Radiometric objective f ’= 150mm Magnification Γ = 10 Ranging range 3000 ~ 4000m From the calculation we can see: line parallax value l (3100m) = 24.19μm line parallax The value of l (3200 m) = 23.44 μm The line parallax value of l (3300 m) = 22.73 μm Therefore: Δ l_1 = l (3100m) -l (3200m) = 0.75μm Δl_2 = l (3200m) -l μm