Parameter Identification and Temperature Compensation of Quartz Flexible Accelerometer Based on Total Least Squares

In this paper, the static rolling test of quartz flexible accelerometer in gravitational field is studied. We establish its error model and use the method of total least squares for identification. In addition, we study the influence of environment temperature on the accelerometer. The accelerometer output is corrected by compensation the bias and the scale factor. The results of the comprehensive experiments show that the method of total least square can effectively identify the model parameters of accelerometer. After temperature compensation, the temperature-varying the bias and the scale factor are reduced from 7.201895e-4(g), 3.109124e-4(V/g) to 2.070704e-5(g), 4.407450e-5(V/g). The stability of the accelerometer output signal has been raised an order of magnitude.