Jt91-200 Artillery Gyrotheodolite Operational Effectiveness Research

JT91-200 artillety gyro altazimuth is a fix instument which can research the grid north automatically and determine grid north azimuth at any direction.It works by making use of the physical features of gyro and influences of earth rotation.The equipment of this instument will play a important role in topographic clement.The paper introduces the fix principles of JT91-200 artillery gyro attazimuth systematically. On the basis of analzing our artillery topographic safe guard situations,combined with its feature characters and requirement of topogtaphic safeguard,the paper also produces its operate method in combat and analyzes the reasons of topographic discrepancy.Especially the paper makes a discussion about hoco to express the instument's operation efficiency in combat,which can give a reference to army and college.