This paper presents a new calibration method of the accelerometer tested on a precision centrifuge to further enhance the calibration accuracy of the high-order error model coefficients. To eliminate the influence of dynamic and static error sources of precision centrifuge on calibration accuracy, nine coordinate systems are established considering the errors of a centrifuge, which are propagated by homogeneous transformation, and the accurate specific forces acting on three axes of the tested accelerometer are obtained. Based on the error model and the accurately computed input specific forces of the accelerometer, the indicated outputs of the tested accelerometer are derived, and with the combinations of indicated outputs of six calibration position pairs, a calibration model of the accelerometer is established. By designing a test plan of 12 positions under three mounting modes and using the least-squares method, all the high-order error model coefficients of the tested accelerometer are calibrated accurately. In the calibration method, the dynamic errors of precision centrifuge are introduced into the observation vectors, and the static errors are introduced into the vectors to be identified; the influence of centrifuge errors is automatically eliminated. Error analysis implies that the calibration accuracy is improved greatly.

中文翻译：

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精密离心机加速度计高阶误差模型系数的标定方法

本文提出了一种新的加速度计在精密离心机上测试的校准方法，以进一步提高高阶误差模型系数的校准精度。为消除精密离心机动、静态误差源对标定精度的影响，考虑到离心机的误差，建立九个坐标系，通过齐次变换传播，作用在被测加速度计三个轴上的准确比力为获得。根据误差模型和精确计算的加速度计输入比力，推导出被测加速度计的指示输出，并结合六个校准位置对的指示输出，建立加速度计的校准模型。通过设计3种安装方式下12个位置的测试方案，采用最小二乘法，对被测加速度计的所有高阶误差模型系数进行准确标定。在标定方法中，将精密离心机的动态误差引入观测向量中，将静态误差引入待识别向量中；自动消除离心机错误的影响。误差分析意味着校准精度大大提高。将静态误差引入待识别的向量中；自动消除离心机错误的影响。误差分析意味着校准精度大大提高。将静态误差引入待识别的向量中；自动消除离心机错误的影响。误差分析意味着校准精度大大提高。