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    • 42. 发明授权
    • Laser rotation rate sensor
    • 激光转速传感器
    • US4563092A
    • 1986-01-07
    • US453157
    • 1982-12-27
    • Joachim Kaiser
    • Joachim Kaiser
    • G01C19/68G01C19/64
    • G01C19/68
    • The invention relates to a laser rotation rate sensor wherein two light beams counterrotate in a polygon equipped with reflectors at its corners, a signal being derived from their frequency difference in dependence on the rate of rotation. The rotation rate sensor comprises a reflector designed and operated as a magneto-optic element for the suppression of lock-in and including a prism whose base boundary face is disposed adjacent a layer of a gyrotropic material, the reflector being designed in such a manner that total reflection occurs. In the laser rotation rate sensor, the index of refraction of the gyrotropic material is approximately equal to or greater than that of the prism; a further layer of a dielectric material is disposed adjacent the gyrotropic layer, which further layer has a smaller index of refraction than the prism material and the material of the gyrotropic layer, in such a manner that total reflection occurs at the interface between the layer of gyrotropic material and the further layer.
    • 本发明涉及一种激光旋转速率传感器,其中两个光束在其角落处装有反射器的多边形中反转,信号根据其旋转速率从它们的频率差导出。 旋转速率传感器包括设计和操作为用于抑制锁定的磁光元件的反射器,并且包括基座边界面邻近旋转材料层设置的棱镜,反射器设计成使得 全反射发生。 在激光旋转速率传感器中,陀螺质材料的折射率近似等于或大于棱镜的折射率; 电介质材料的另一层被设置在陀螺层附近,该另外的层具有比棱镜材料和陀螺质层的材料更小的折射率,使得全反射发生在 陀螺材料和另外的层。