Device and method for regulating precision of triaxial accelerometer

The invention provides a method for regulating the precision of a triaxial accelerometer, which comprises the following steps: monitoring output signals of the accelerometer, and judging whether the accelerometer is static relative to the ground according to the output signals; recording the output signals when the accelerometer maintains static; calculating the sensitivity and the 0g output of the accelerometer according to the recorded signals; and regulating subsequent output signals of the accelerometer by using an equation of ak=Gk(Vk-Vk0) according to the sensitivity and the 0g output. By utilizing the method for regulating the precision of the triaxial accelerometer, the output signal calculation of the accelerometer can be utilized to acquire more precise parameters for regulationso as to improve the precision of the triaxial accelerometer. In addition, the invention also provides a device for regulating the precision of the triaxial accelerometer.