MEMS based ring laser gyroscope with reduced lock-in
    2.
    发明授权
    MEMS based ring laser gyroscope with reduced lock-in 有权
    基于MEMS的环形激光陀螺仪减少锁定

    公开(公告)号:US09574880B2

    公开(公告)日:2017-02-21

    申请号:US13630792

    申请日:2012-09-28

    CPC classification number: G01C19/70 G01C19/661

    Abstract: A ring laser gyroscope (RLG) includes moveable mirrors and a Micro-Electro-Mechanical Systems (MEMS) actuator coupled to the moveable mirrors to cause a respective displacement thereof that induces a phase modulation on counter-propagating light beams relative to one another. The induced phase modulation creates an optical path difference between the counter-propagating light beams corresponding to a virtual rotation that reduces the lock-in of the RLG.

    Abstract translation: 环形激光陀螺仪(RLG)包括可移动反射镜和耦合到可移动反射镜的微机电系统(MEMS)致动器,以引起其相对于彼此在反向传播的光束上引起相位调制的相应位移。 感应相位调制在对应于减少RLG锁定的虚拟旋转的反向传播光束之间产生光程差。

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