Low cost, practical, all-digital open-loop fiber-optic gyroscope  

作　　者：杨远洪 张惟叙 马静 陈新军 

机构地区：[1]The 5th Research Division, Beijing University of Aeronautics & Astronautics, Beijing 100083

出　　处：《Chinese Optics Letters》2003年第10期567-569,共3页中国光学快报（英文版）

摘　　要：A novel all-digital scheme for open-loop fiber-optic gyroscope (POG), where only two key points of output wave were digitized directly, has been proposed. A control equation, with which the modulation depth of PZT modulator is stable when setting the modulation depth as 4.35 and a calculation equation, with which the Sagnac phase can be worked out, are derived. A modulation depth control and an automatic correlation sampling and a gain control technology were induced. A photo-type FOG was made and tested. The good performance was achieved.A novel all-digital scheme for open-loop fiber-optic gyroscope (POG), where only two key points of output wave were digitized directly, has been proposed. A control equation, with which the modulation depth of PZT modulator is stable when setting the modulation depth as 4.35 and a calculation equation, with which the Sagnac phase can be worked out, are derived. A modulation depth control and an automatic correlation sampling and a gain control technology were induced. A photo-type FOG was made and tested. The good performance was achieved.

关 键 词：FOG in OPEN it Low cost all-digital open-loop fiber-optic gyroscope PRACTICAL BE of 

分 类 号：V241.558[航空宇航科学与技术—飞行器设计]