石英挠性加速度计正交双表测试方法研究

Research on orthogonal double quartzose flexible accelerometers test method

给出了在转台上标定石英挠性加速度计的正交双表测试方法。分析了转台误差源对加速度计误差模型辨识的影响,建立了g2观测法的辨识模型,并在转台上进行了20位置试验。试验结果表明:正交双表法可以降低设备转角误差对加速度计模型参数估计结果的影响,从而显著提高加速度计测试精度。

An orthogonal double accelerometer test method to calibrate quartzose flexible accelerometer on turntable is presented. The effect of turntable error resource on the test precision is analyzed, the identification model for g^2 observation method is established, and the 20-situation-experiment is made. The test results show that the orthogonal double accelerometers test method can decrease the turntable error angle effect on the accelerometer model estimation result, and the test precision can be improved remarkably.