Ring laser gyroscopes

2019-07-31

Ring laser gyroscopes can be used as the stable elements in an inertial reference system. The advantage of using an RLG is that there are no moving parts, compared to the conventional spinning gyroscope. This means there is no friction, which in turn means there will be no inherent drift terms. Additionally, the entire unit is compact, lightweight and highly durable, making it suitable for use in aircraft and also satellites.

Contemporary applications of the Ring Laser Gyroscope (RLG) include an embedded GPS capability to further enhance accuracy of RLG Inertial Navigation Systems (INS)s on military aircraft, commercial airliners, ships and spacecraft. These hybrid INS/GPS units have replaced their mechanical counterparts in most applications. 

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