轴系晃动与动态靶标精度检测

旋转动态靶标是用来检测大型光电经纬仪跟踪精度和动态精度的设备。为了得到旋转动态靶标轴系晃动与精度的关系,利用旋转向量与坐标系变换理论分析轴系晃动对靶标高低角和方位角的具体影响,并对其误差进行分析。由于靶标的动态精度目前还没有设备能够检测,只能根据分析的结果,用自准直仪对静态的轴系晃动进行测量,然后标定静态的精度,验证了静态轴系晃动对靶标的影响与理论计算值一致性很好,然后通过测量靶标动态的轴系晃动来修正靶标的动态精度。

Axis sloshing and dynamic target precision testing

Rotary dynamic target is the equipment for measuring tracking precision and dynamic precision of the large scale photoelectric theodolite.To obtain the relationship between rotary dynamic target axis shake and its precision,rotating vector and coordinate transfer are used to analyze axis shake′s influence to target′s high and low angle and azimuth angle,and then to analyze its error.Because the target′s dynamic precision can not be measured at present,according to the analysis result,the only solution is to measure the static axis shake with autocollimation and then to mark its static precision.When the influence of static axis shake to the target finely accord with theory computing,target′s dynamic precision can be finely corrected by measuring dynamic axis shake.