半捷联模拟控制减旋电路设计  

Design of Rotary Reduction Analog Control Circuit for Semi-strapdown System

作　　者：祝敬德 李杰[1,2] 张松[1] 刘俊[1,2] 郝茂森 

机构地区：[1]中北大学电子测试技术国防科技重点实验室,山西太原030051 [2]中北大学中北大学仪器科学与动态测试教育部重点实验室,山西太原030051 [3]总装备部工程兵军代局驻西安和兰州地区军代室,陕西西安710086

出　　处：《实验室研究与探索》2015年第6期46-49,62,共5页Research and Exploration In Laboratory

基　　金：国家自然科学基金(50905169);武器装备探索研究项目(7131017)

摘　　要：常规弹药姿态、速度、位置等弹道参数的测量一般采用MEMS捷联惯性测量系统。由于常规弹药在飞行过程中处于高速自旋状态,需要大量程的MEMS陀螺仪,导致测试数据的精度较低,误差较大。针对此问题本文介绍了MEMS半捷联惯性测量系统的概念,在此基础上设计半捷联模拟控制减旋电路,通过控制伺服电机反旋使微惯性测量组合处于微旋的测试环境中,用小量程、高精度的MEMS陀螺仪测量常规弹药的姿态,有效提高了测量精度,具有一定的工程应用价值。MEMS Strapdown Inertial Measurement System is widely used in measuring parameters like attitude,speed and position of conventional ammunitions. Use of large range gyroscope in high-spin ammunition leads to the increase of error and the decrease of accuracy. Against these problems,the paper introduces the concept of MEMS Semi-strapdown System,and designs rotary reduction analog control circuit to reduce rotation environment for MIMU by controlling servo motor rotate reversely. This circuit makes it possible for small range and high accuracy gyroscope used in measuring ballistic parameters of high-spin ammunition, and increases measurement accuracy. It has certain engineering applications meaning.

关 键 词：半捷联 模拟控制 电路设计 

分 类 号：TN86[电子电信—信息与通信工程] TN710.2