一个新的闭环控制来解决光源功率波动在光纤陀螺仪的光纤光学陀螺仪
Shijie Zheng1, Mengyu Ren1, Xin Luo1
1Institute of Laser & Micro/Nano Engineering, College of Electronics & Information Engineering, Sichuan University, Chengdu 610065, China.
Sensors (Basel, Switzerland)
|July 11, 2023
概括
两种新方法,双周期调制 (DPM) 和三周期调制 (TPM),有效地弥补干扰度光纤光学陀螺仪 (IFOG) 中的光源功率 (LSP) 波动,显著改善偏差稳定性.
科学领域:
- 光学和光子学 在光学和光子学.
- 传感器技术 传感器技术
- 控制系统工程 控制系统工程
背景情况:
- 介面计光纤陀螺仪 (IFOG) 容易受到光源功率 (LSP) 波动引起的性能降低的影响.
- 对LSP波动的准确补偿对于保持IFOG性能至关重要,特别是当错误信号不确定时.
研究的目的:
- 引入和评估两种新的补偿方法,双周期调制 (DPM) 和三周期调制 (TPM),用于LSP波动引起的不确定的陀螺仪误差.
- 在IFOG中比较DPM和TPM的性能和电路要求.
主要方法:
- 实施双周期调制 (DPM) 和三周期调制 (TPM) 技术,以减轻LSP波动的影响.
- 在一系列LSP波动频率 (1kHz至16kHz) 中对DPM和TPM性能进行实验验证.
主要成果:
- DPM和TPM都显著提高了IFOG中的偏差稳定性,在低波动频率 (1-2kHz) 中达到高达95%的增强.
- 在更高的波动频率 (4-16 kHz) 中,DPM表现出卓越的性能,提高了差距稳定性约95%,而TPM则实现了约88%的改进.
- DPM提供了更好的性能,但需要更复杂的电路,而TPM的电路需求较低,因此适用于小型光纤线圈应用.
结论:
- DPM和TPM是有效的策略,用于补偿IFOG中LSP波动引起的不确定的陀螺仪错误.
- 在DPM和TPM之间的选择取决于具体的应用要求,平衡性能需求与电路复杂性和尺寸限制.
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