High precision error coefficients can accurately evaluate performance and precision of accelerometer

start from quartz flexible accelerometer error model

multi-directional vibration test experiments are carried out and by total least squares（ TLS） algorithm to identify higher-order error coefficient in accelerometer model equation

establish high precision accelerometer mathematical error model. To verify effectiveness of algorithm and reliability of implemented experiment

taking the traditional multi-point gravity field test accelerometer parameter identification method for comparison

at the same time

put forward error coefficients and determination coefficients indicators to evaluate the effect of vibration test identification. The result shows that accelerometer higher order error coefficient identified by total least squares method combined with multi-directional vibration test has higher precision

and has good reference in practice.