高精度白光与微光瞄具零位走动量检测技术研究

Study of High Precision Zero Point Momentum Detection Technology for White and Shimmer Light Sight

针对白光瞄具前加设微光镜组而成的组合式瞄具零位高精度检测需求,研究了一种可检测组合式瞄具纯零位变化及微光镜组光轴走动量的光电检测方法。该方法采用CCD相机测量组合式瞄具总的零位变化量,双自准直仪对组合式瞄具装卡产生的误差和微光镜组装卡产生的调整架姿态变化进行定量检测,并从CCD测量值中予以剔除,最终得到组合瞄具的纯零位变化以及微光镜组的光轴走动量。阐述了检测理论模型,并设计了测量实验。研究结果表明:白光瞄具的纯零位走动量测量精度σ值不大于2.16″(0.01 mil);微光镜组的光轴走动量测量精度σ值不大于21.6″(0.1 mil).

For the requirements of the sight line alteration detection of the combined sight adding a shimmer lens group to the white sight, a high-precision measurement method can be used to measure the true sight line alteration of combined sight as well as the optic axis variation of shimmer lens group. In the method, a CCD camera is used to measure the total sight line alteration, and the errors caused by assemb- ling the combined sight and the attitude change of adjusting bracket caused by assembling the shimmer lens group are quantitatively measured using a dual-auto-collimator, which are eliminated from the meas- ured values to get a true sight line alteration. A theoretical detection model is presented, and the measur-ing experiment is made. The results show that the measured value of sight line alteration σ is less than 2.16＂（0.01 mil） ; the measured value of the optic axis variation of shimmer lens group σ is less than 21.6＂（0. 1 mil）.