The Research Of Accelerometers' Array Error Coefficient Demarcate Method Based On Angular Velocity

In an all accelerometers micro inertial measurement unit,the accelerometers are not only used to acquire the linear acceleration, but also replace the gyroscopes to compute the angular rate according to their positions in three-dimension space,which has the advantages of anti-high g value shock, low power consumption,small volume and low cost. It can be applied to some specific occasions such as the tactic missiles, the intelligent bombs and so on. So, the study on it has not only the important academic significance but also the application values in the field of national defense.In virtue of its own factors,accelerometer has Scale factor error, bias, random noise and assemble error which are Direction error , location error, coupling error and so on.So,we should demarcate all of the error coefficient of the accelerometer.Accelerometer calibration must be established on the premise that the accelerometer output model, this paper established a new static and dynamic accelerometer error output model based on twelve accelerometers'configuration. Calibrationed coefficients the error of the accelerometer on the basis of the error utput model, through error correction, the final experimental results show that the effectiveness of the proposed method.