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激光陀螺的工作原理基于1913年发现的萨纳克(Sagnac)效应.六十年代初用激光顺、逆两方向在环形干涉仪中探测出的频率之差,与转动角速度严格成正比,具有天然优越的线性度与恒定性.据《航空周刊与空间技术》1982年9月6日报导:美国两台大光程激光陀螺GG-1300的比例因子比常规陀螺恒定性高100倍.在一次46小时的实验中,30度/秒角速度作用下,比例因子偏差为千万分之一.
The working principle of the laser gyro is based on the Sagnac effect found in 1913. The difference between the frequencies detected by the ring interferometer in the early 1960s in the ring interferometer is strictly proportional to the rotational angular velocity and has a natural Superior linearity and consistency According to Aviation Week and Space Technology, September 6, 1982, the scale factor of the two large optical range laser gyroscopes, GG-1300, is 100 times higher than that of a conventional gyroscope.At a time of 46 hours Experiments, the angular velocity of 30 degrees / sec, the scale factor deviation of one millionth.