传统的光学系统对于视度及视差的测量通常采用平行光管视差仪或视度筒,其测量结果受人为主观因素影响较大。为满足望远系统测量视度及视差的精度要求;采用高分辨率CCD作为测量器件,经自动对焦和图像处理,由计算机直接给出测量结果,消除了人为因素影响,提高了测量准确度,操作简易。论述并推导了视度及视差的测试原理及计算公式,并对测试系统进行了误差分析。 The traditional optical system for the measurement of parallax and parallax usually adopts a parabolic collimator or a diopter tube, and the measurement result is greatly influenced by subjective factors. In order to meet the telescope system to measure the degree of parallax and accuracy requirements; the use of high-resolution CCD as a measuring device, autofocus and image processing, given directly by the computer measurement results, eliminating the impact of human factors and improve the measurement accuracy, Easy to operate. The test principle and calculation formula of the degree of parallax and parallax are discussed and deduced, and the error analysis of the test system is carried out.