摘要
激光陀螺长期工作或环境温度变化较大时有可能发生跳模现象,跳模会对陀螺的性能带来较大的影响。通过对激光陀螺相邻模的背向散射特性的分析,发现背向散射光强呈现周期性,且与工作模式之间存在严格的对应关系,由此得出激光陀螺跳模规律,即跳在相同的模式上陀螺性能前后没有明显变化,而跳在相邻模式上会引起陀螺锁区变大、零偏发生跳变,给性能带来较大影响。针对跳模规律提出了合理的跳模控制建议,并通过实验验证了上述结论。
Laser gyroscope working mode is likely to hop when it works for a long time or the ambient temperature changes greatly. To change the mode of the laser gyro will bring a great impact on it＆#39;s performance. Based on the analysis to the backscattering properties in the adjacent model of laser gyro, the backscattering intensity is periodic, and there is a strict correspondence between the working mode and backscattering intensity. The laser gyro mode hopping pattern is that if the model of laser gyro jumps in the same model gyro performance before and after does not change significantly, while it jumps in the adjacent model gyro′s lock-in will arise and bias will jump, and gyro performance is affected greatly. According to the mode hopping law the reasonable suggestion was put forward, the above conclusions were proved by the experiment.
出处
《红外与激光工程》
EI
CSCD
北大核心
2014年第2期502-505,共4页
Infrared and Laser Engineering
关键词
激光陀螺
工作模式
跳模
零偏
背向散射
laser gyroscope
working mode
mode hopping
bias
backscattering
