Leveling equipment based on 2-axis accelerometer

In high shock environment, leveling equipment in the surface orientation system is always affected by environment disturbances. This paper introduces structure analysis philosophy of leveling equipment for high shock environment. The equipment used 2-axis accelerometer to measure the level attitude. The two-axis dead reckoning was used to calculate inclination of horizontal plane. In environment of 1000g/0.6s shock and -40 degrees C similar to 55 degrees C. leveling equipment can realize level attitude detect of horizontal plane. The accuracy of measurement excels 1 angular mil.