Integrated Design, Trajectory Correction Micro-gyro Based On Mems Technology

Ballistic correctable munition(BCM) is a kind of armament which can be widely developed. It worked by adding correcting module on average shells. But now it becomes a problem of the micromation of inertial guiding module, then ballistic trajectory can not be real-time detected. Only the range of cannon can be corrected while the direction cannot. This limits the shells' shooting accuracy and comsumes more shells. Micromachined gyroscope based on MEMS has smaller size and lower cost with appropriate precision, is a ideal inertial measuring component.Based on the practice in ballistic correction, the paper carried through gyroscope's system analysis and design. Such tasks have been finished as follows:1. Understanding the correction process, the rigid body's ballistic correction model is established. The model is programmed and simulated, then gyroscope's measuring accuracy and range are made sure depending on the output ballistic parameters.2. The restriction of gyroscope's high overloading are presented, including gyroscope's style and structure dimension. The relation between gyroscope's dimension and rigidity are presented by analysing dimensions. then structure rigidity is studied.3. Stress, frame mode, liquid dame, circuit and error, etc , which are closely related to gyroscope, are analysed in detail, so the designed gyroscope can meet the practice demand in ballistic correction.The study of micromachined gyroscope based on MEMS in the paper have important reference value and application foreground in rising ballistic correction's accuracy and efficiency.