公开(公告)号：US3867034A

公开(公告)日：1975-02-18

申请号：US41651873

申请日：1973-11-16

Applicant: HONEYWELL INC

Inventor： ARONOWITZ FREDERICK

IPC: G01C19/68 ,  G01P3/36 ,  H01S3/083 ,  G01B9/02 ,  G02F1/26

CPC classification number: H01S3/083 ,  G01C19/68

Abstract: Electro-optical apparatus for preventing lock-in in a laser angular rate sensor. A Faraday material is placed between two wave plates, the birefringence of each wave plate varying in response to applied electric fields. The two wave plates may be positioned so that the principal axes of their index ellipses are substantially orthogonal to one another. A cyclic voltage of high frequency is applied to each wave plate to rapidly and cyclically vary its birefringence. This achieves biasing apparatus having a longer effective optical path length first in one direction and then in the opposite direction.

Abstract translation: 用于防止在激光角速度传感器中锁定的电光装置。 法拉第材料放置在两个波片之间，每个波片的双折射响应于施加的电场而变化。 两个波片可以被定位成使得其索引椭圆的主轴基本上彼此正交。 对每个波片施加高频循环电压以快速且周期地改变其双折射。 这实现了在一个方向上首先在相反方向上具有较长有效光程长度的偏置装置。