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四频激光陀螺光强稳定控制后两种不同模式下的零漂在高低温实验中表现出非常明显的差异,其中一种模式的零漂在温度单方向变化时存在一定的振荡,而另一种模式的零漂与温度基本上是线性关系,并且具有良好的重复性。针对这一现象,根据四频激光陀螺的基本理论,分析得出导致这种高低温下不同模式零漂随温度变化不同的主要物理根源可能是差损零漂项和恒磁偏频零漂项随温度变化关系的不同。同时指出四频激光陀螺如果采用温度补偿来提高其精度,则温补系数必须在实际使用的模式下确定才有意义。
The zero-drift of the two different modes after the steady-state control of the intensity of the four-frequency laser gyroscope shows a very significant difference in high and low temperature experiments. One mode of zero drift has some oscillation when the temperature changes unidirectionally, while the other The zero drift of the model is basically linear with temperature and has good repeatability. In response to this phenomenon, according to the basic theory of quadrupole laser gyroscope, it is concluded that the main physical causes of different drift modes with different temperatures under high and low temperatures may be differential zero drift and constant drift Different temperature changes. At the same time, it is pointed out that if the temperature compensation is used to improve the precision of the quad-band laser gyro, the temperature compensation coefficient must be determined in the actual mode to make sense.