针对高过载环境下制导弹药内部空间约束及运动参数难以精确测量的问题，该文设计了一种框架式嵌入结构型的微惯性测量单元(MIMU)结构。MIMU由三轴微机械陀螺仪和三轴微机械加速度传感器组成，通过合理配置传感器的安装方式和优化内部空间布局，极大地减小了MIMU的质量和体积。整体结构采用高强度金属材料和特殊的灌封工艺，保证了MIMU抗高过载性能。通过有限元仿真与分析表明，所设计的MIMU结构可满足不小于20 000g(g=9, 8 m/s2)的过载冲击。最后在靶场通过搭载某型号试验弹进行炮射过载实验，其实验结果表明，该文所设计的MIMU具备抗高过载能力，满足制导弹药高过载要求。

Aiming at the problem that the internal space constraints and motion parameters of guided munitions are difficult to accurately measure in the high overload environment, a frame-type embedded micro inertial measurement unit (MIMU) structure is designed, The MIMU is composed of a three-axis MEMS gyroscope and a three-axis MEMS accelerometer, The weight and volume of the MIMU are greatly reduced by reasonably configuring the installation method of the sensor and optimizing the internal space layout, The overall structure of the MIMU adopts the high strength metal material and special potting process, which ensures its high overload resistance performance, Through finite element simulation and analysis, the results show that the structure of MIMU can meet the overload impact of not less than 20 000g(g=9, 8 m/s2), Finally, the penetration overload test has been carried out by carrying the MIMU on the certain type of test projectile in the shooting range, The test results also show that the designed MIMU has the ability to resist high overload and meet the high overload requirements of guided munitions,