一种减小加速度计重力法标定中安装误差影响的方法

A method reducing effect of installation error in accelerometer gravimetric calibration

针对加速度计重力法标定中由安装误差引入初始失准角的问题。提出了一种基于非线性最小二乘拟合法的修正模型,并通过重力法静态标定装置对修正模型进行实验验证。实验结果表明,修正模型能准确标定出初始失准角参数,减小加速度计重力法标定中安装误差对标定结果的影响。

Here, a modified model based on the nonlinear least square fitting method was proposed for solving the problem of initial misalignment angle caused by installation error in accelerometer gravimetric calibration. Verification tests were conducted for the modified model using a gravimetric static calibration device. The test results indicated that the modified model can be used to correctly calibrate parameters of the initial misalignment angle to reduce the effect of installation error on the calibrated result in accelerometer gravimetric calibration.