Using The Accelerometer To Determine The Roll Attitude Of The Trajectory Correction

With the background of some 80mm shell, the method that the real-time roll attitude of the shell body is detected by a micromachining accelerometer with simple principle, low cost, low power and high reliability is studied on the basis of analyzing the present situation and developing tendency of trajectory correction projectile at home and abroad.According to the work principle, the theory model of the shell body's roll attitude detection is built. Based on that model, the data acquisition and transmission of the shell body's roll attitude is implemented by using DSP (TMS320F2812) suitable for real-time data acquisition and processing. And the data reception and data processing is realized by upper PC software which is developed by visual basic. The test on three-axis rotating dais is executed in virtue of the evaluation system designed for the shell body's roll attitude detection. And the result of the test has verified that the system designed achieves the expected goal very well.