CAJ | 학술논문

为了满足捷联寻北调平系统自动化、智能化的要求，提出了一种转台自动调平方法。选用双轴倾角仪采用差分测量的方法获得转台倾斜角，根据旋转坐标变换由转台倾斜角度计算出转台倾斜支腿的高度，分别根据转台中心点不动和最高点不动的调节策略升降转台支腿，调平转台。仿真计算结果表明，最高点不动的调节方案具有较好的调节效果，采用最高点不动的调节方案，在支腿之间距离为350 mm，丝杆最小调节距离为2μm时，转台X轴和Y轴方向的调节精度分别为2．0＂、1．7＂，满足捷联寻北系统的调平精度要求。该自动调平方法操作简单，调节精度高，可应用于光电经纬仪等带有铅垂轴系转台的高精度光电设备自动调平中。
위료만족첩련심북조평계통자동화、지능화적요구，제출료일충전태자동조평방법。선용쌍축경각의채용차분측량적방법획득전태경사각，근거선전좌표변환유전태경사각도계산출전태경사지퇴적고도，분별근거전태중심점불동화최고점불동적조절책략승강전태지퇴，조평전태。방진계산결과표명，최고점불동적조절방안구유교호적조절효과，채용최고점불동적조절방안，재지퇴지간거리위350 mm，사간최소조절거리위2μm시，전태X축화Y축방향적조절정도분별위2．0＂、1．7＂，만족첩련심북계통적조평정도요구。해자동조평방법조작간단，조절정도고，가응용우광전경위의등대유연수축계전태적고정도광전설비자동조평중。
An automatic leveling method for strap-down north leveling system , which can be used to measure the north direction automatically and efficiently, is proposed.Using differential measurement method, we measure tilt an-gle of turntable by inclinometer, and then use the tilt angle to calculate the inclination height of legs by applying the rotation coordinate transformation principle .Two strategies are adopted to level the turntable , the first one is to keep the central point unmoved , and the second one is to maintain the position of the highest point .The simulation results show that the latter method has higher precision.When the distance between two legs is 350 mm, the minimum ad-justment distance of screw is 2 μm.The regulating precision of the second strategy can reach 2.0"in X-axis and 1.7"in Y-axis, it is suitable for strap-down north leveling system.The proposed method is simple to operate, has high precision, and can be applied for any situation that needs to level high precision photoelectric equipment which has perpendicular shaft of turntable, such as photoelectric theodolite.