光纤陀螺
陀螺仪
信号(编程语言)
速率积分陀螺仪
补偿(心理学)
控制理论(社会学)
调制(音乐)
环形激光陀螺仪
干涉测量
物理
功率(物理)
光纤
萨格纳克效应
光学
计算机科学
振动结构陀螺仪
声学
心理学
控制(管理)
量子力学
人工智能
精神分析
程序设计语言
作者
Shijie Zheng,Mengyu Ren,Xin Luo,Hangyu Zhang,Guoying Feng
出处
期刊:Sensors
[Multidisciplinary Digital Publishing Institute]
日期:2023-05-09
卷期号:23 (10): 4590-4590
被引量:1
摘要
The performance of a gyroscope is directly affected by the fluctuations in the light source power (LSP) in an interferometric fiber-optic gyroscope (IFOG). Therefore, it is important to compensate for fluctuations in the LSP. When the feedback phase generated by the step wave completely cancels the Sagnac phase in real-time, the error signal of the gyroscope is linearly related to the differential signal of the LSP, otherwise, the error signal of the gyroscope is uncertain. Herein, we present two compensation methods to compensate for the error of the gyroscope when the error is uncertain, which are double period modulation (DPM) and triple period modulation (TPM). Compared with the TPM, DPM has better performance, but it increases the requirements for the circuit. TPM has lower requirements for the circuit and is more suitable for small fiber- coil applications. The experimental results show that, when the frequency of the LSP fluctuation is relatively low (1 kHz and 2 kHz), DPM and TPM do not differ significantly in terms of performance; both of them can achieve an improvement of about 95% in bias stability. When the frequency of the LSP fluctuation is relatively high (4 kHz, 8 kHz and 16 kHz), DPM and TPM can achieve about 95% and 88% improvement in bias stability, respectively.
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