针对光电跟踪系统稳定精度测试需求，提出一种稳定精度动态测试方法。该方法基于光学自准直原理，采用面阵CCD探测器，结合图像求取质心算法，实现被测系统的动态测试，通过该装置获得了稳定精度测试结果。结果表明：测试50μrad级两轴两框架系统动态稳定精度，通过该测试方法测出其稳定精度最大为48μrad。%For the stability test requirements of precision optical tracking system ,we presented a dynamic testing method of stability accuracy .According to the optical auto‐collimation prin‐ciple ,we utilized the CCD array detector combined with the computation for center of image to realize the dynamic test ,and we required the test results of stability accuracy by this device . Experiments results show that for the 50 μrad level two‐axis two‐frame system ,the tested sta‐bility accuracy is up to 48 μrad by our method .
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