Zero error is one of the important indexes of inertial sensors such as accelerometers

so it is of great significance to study the effect factors of zero error to improve the performance of the device. According to the structure and assembly characteristic of a certain type of accelerometer

the generating principle of zero error of accelerometer is analyzed

error model is established

the effect of the adhesive layer geometry error on accelerometer zero error value is analyzed with ABAQUS finite element simulation software. The results indicate the thickness deviation and contact area deviation of the adhesive layer have great effect on zero error value of the accelerometer

so they should be strictly controlled in a certain range in the assembly process

this conclusion provides theoretical basis for the improvement of the performance and assembly process of accelerometer.