Output signal of silicon micro-resonant accelerometer is reflected by resonant frequency

which determines precision of instrument.But resonant frequency of accelerometer has temperature-sensitive characteristic.When temperature changes

measurement error will occur.To reduce this influence

peripheral control system of the accelerometer is analyzed.On the basis of analyzing on law that the resonant frequency and control voltage of the accelerometer vary with temperature

the compensation method of zero bias for accelerometer is designed.The model for resonant offset frequency and control voltage of accelerometer is established by data fitting

and the temperature compensation of deviation of accelerometer is accomplished based on the model.Full-temperature experiments are carried out to verify the validity of this method.The results show that between the temperature range of-20～ 30 ℃

the zero bias drift of accelerometer is reduced by 66.7 % compared with that of the accelerometer before compensation.