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本伺服机构与响尾蛇空空导弹相似,将天线置于三自由陀螺转子上,实现圆锥扫瞄,稳定天线,隔离弹体的振动和摆动对天线的影响。又与另一些空空导弹相似,其天线的进动是靠俯仰、偏航二控制电机施加力矩实现。天线的角位置是用正余弦旋转变压器测量,实现电气锁定和前置发射的位置予定。除此之外,最突出的特点是天线的进动力矩通过扭杆施加到陀螺上,而扭杆的扭角由力矩电位计测量输出并反馈至角跟踪电路以减少双通道耦合和改善导引头的性能。
The servo and rattlesnake air-to-air missile similar to the antenna placed on the three free gyro rotor, to achieve a cone scan, stabilize the antenna, the isolation of the vibration and vibration of the projectile on the antenna. Similar to other air-to-air missiles, its precession of the antenna is achieved by controlling the motor torque and pitch and yaw. The antenna’s angular position is measured with a sine cosine transformer to achieve the electrical locking and pre-launch position. In addition, the most prominent feature is that the precession torque of the antenna is applied to the gyro through the torsion bar, and the torsion angle of the torsion bar is measured by the torque potentiometer and fed back to the angle tracking circuit to reduce the dual-channel coupling and improve the guidance Head performance.