PASSIVE FIBER OPTIC GYROSCOPE

被引：7
|
作者：
TROMMER, GF
POISEL, H
BUHLER, W
HARTL, E
MULLER, R
机构：
[1] Messerschmitt-Bolkow-Blohm GmbH, Munich, D-8000
来源：
APPLIED OPTICS | 1990年 / 29卷 / 36期
关键词：
OPTICAL FIBERS; GYROSCOPES;
D O I：
10.1364/AO.29.005360
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A fiber optic gyroscope different from the standard concept is presented. A fused fiber 3 x 3 directional coupler provides a constant phase shift thus enabling the detection of rotation rate at the quadrature point without phase modulation. Bias errors due to birefringent coupling centers in the fiber coil are avoided by using an unpolarized light source. A contrast insensitive signal recovery scheme eliminates the influence of polarization fluctuations on the scale factor. First measurements with a prototype gyroscope (90 mm in diameter and 23 mm in height) show a bias stability of < 4.7-degrees/h and scale factor accuracy of < 0.1% in the range of +/-200-degrees/hs.
引用
收藏
页码：5360 / 5365
页数：6
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