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中文摘要：
锁放环节是影响摆式陀螺寻北速度及陀螺灵敏部下放后限幅难度的关键环节。为解决现有摆式陀螺寻北仪锁放时间较长且陀螺灵敏部下放后摆幅较大的问题,以一种能够进行匀速运动的锁放装置为例,通过对原有控制电路进行I2C总线扩展,针对锁放过程中各阶段特点合理控制锁放电机转速,实现平稳快速锁放要求。经实验验证,新的锁放控制方法完全可行,锁放时间控制到25s内,下方后摆幅不超过1°30′,具有可行性和实用价值。
英文摘要：
The lock-release is the key factor which influences the north-finding accuracy of the pendulous gyroscope.In order to solve the problem of long-time lock-release and wide swing range of the pendulous gyroscope,by using a new lock-release system with uniform motion as a study case and using I2 Cbus expension of the pre-existing control circuit to control lock-release electrical machine accurately and reasonably,the steady and rapid lock-release has been realized.The experiment verification show that the new control method is feasible,and both the lock-release time and swing range have been limited to 25 sand 1°30′respectively,thus it has feasibility and practical value.
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