提高机械抖动激光陀螺抗振性能

赵小宁; 韩宗虎; 李县洛; 陈林峰; 郭昕; 叶萍; 雷建军

doi:10.3788/IRLA201645.0731003

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提高机械抖动激光陀螺抗振性能

赵小宁, 韩宗虎, 李县洛, 陈林峰, 郭昕, 叶萍, 雷建军

文章导航 > 红外与激光工程 > 2016 > 45(7): 731003-0731003(5)

赵小宁, 韩宗虎, 李县洛, 陈林峰, 郭昕, 叶萍, 雷建军. 提高机械抖动激光陀螺抗振性能[J]. 红外与激光工程, 2016, 45(7): 731003-0731003(5). doi: 10.3788/IRLA201645.0731003

引用本文:

Zhao Xiaoning, Han Zonghu, Li Xianluo, Chen Linfeng, Guo Xin, Ye Ping, Lei Jianjun. Improving mechanically dithered RLG vibration performance[J]. Infrared and Laser Engineering, 2016, 45(7): 731003-0731003(5). doi: 10.3788/IRLA201645.0731003

Citation:

Zhao Xiaoning, Han Zonghu, Li Xianluo, Chen Linfeng, Guo Xin, Ye Ping, Lei Jianjun. Improving mechanically dithered RLG vibration performance[J]. Infrared and Laser Engineering, 2016, 45(7): 731003-0731003(5). doi: 10.3788/IRLA201645.0731003

提高机械抖动激光陀螺抗振性能

doi: 10.3788/IRLA201645.0731003

1.
西安飞行自动控制研究所,陕西西安 710065

基金项目:

国防重点预研项目（51309010202）

详细信息

作者简介:
赵小宁(1978-),男,高级工程师,从事激光陀螺技术方面的研究。Email:xnzhao369@126.com

中图分类号: TN248.2

Improving mechanically dithered RLG vibration performance

1.
Xi'an Flight Automatic Control Research Institute,Xi'an 710065,China

摘要: 通过提升谐振腔抗光路变形能力，可以有效提高机械抖动激光陀螺的抗振动性能。对机械抖动激光陀螺振动中光路扭偏的产生机理进行了理论计算与仿真分析，分析结果表明，抖动切向惯性力和振动冲击惯性力是引起振动中光路扭偏的主要原因。通过振动中光路扭偏对振动性能影响的理论分析指出，减小振动附加上去的朗缪尔零偏，提高陀螺抗振性能的两大有效措施是减小工作电流和提高光路抗失谐能力。通过物理试验验证了振动中光路扭偏机理仿真分析的正确性。不同工作电流的振动对比试验表明，降低工作电流可显著提高陀螺的振动性能，这对于机抖激光陀螺振动特性的提升具有重要指导意义和工程实用价值。
- 机械抖动激光陀螺 /
- 光路扭偏 /
- 朗缪尔零偏
Abstract: Reducing the deviation of light path in cavity can improve mechanically dithered RLG vibration performance. The mechanism of the deviation of light path in the cavity of mechanically dithered RLG was analyzed and simulated. According to the results, the main reasons of light path deviation were dithered tangential inertial force and vibration impact inertial force. Meanwhile, the deviation of light path in cavity of RLG could change the RLG bias produced by Langmuir flow. The two main effective means of reducing Langmuir flow bias produced by vibration and improving gyro vibration performance were decreasing working current and improving stability of light path in cavity. The mechanism of mechanically dithered RLG light path deviation was validated by test. Compared with vibration test results of different working current, the vibration performance of RLG is improved obviously by reducing working current. The means of improving vibration performance by decreasing working current and increasing stability of light path is put forward, which is useful to improve vibration performance of mechanically dithered RLG and reform for the further development of RLG.
- mechanically dithered RLG /
- light path deviation /
- Langmuir flow bias

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提高机械抖动激光陀螺抗振性能

doi: 10.3788/IRLA201645.0731003

1. 西安飞行自动控制研究所,陕西西安 710065

作者简介:
赵小宁(1978-),男,高级工程师,从事激光陀螺技术方面的研究。Email:xnzhao369@126.com

收稿日期: 2015-11-14
修回日期: 2015-12-15
刊出日期: 2016-07-25

基金项目:

国防重点预研项目（51309010202）

中图分类号: TN248.2

关键词:

摘要: 通过提升谐振腔抗光路变形能力，可以有效提高机械抖动激光陀螺的抗振动性能。对机械抖动激光陀螺振动中光路扭偏的产生机理进行了理论计算与仿真分析，分析结果表明，抖动切向惯性力和振动冲击惯性力是引起振动中光路扭偏的主要原因。通过振动中光路扭偏对振动性能影响的理论分析指出，减小振动附加上去的朗缪尔零偏，提高陀螺抗振性能的两大有效措施是减小工作电流和提高光路抗失谐能力。通过物理试验验证了振动中光路扭偏机理仿真分析的正确性。不同工作电流的振动对比试验表明，降低工作电流可显著提高陀螺的振动性能，这对于机抖激光陀螺振动特性的提升具有重要指导意义和工程实用价值。

English Abstract

Improving mechanically dithered RLG vibration performance

1. Xi'an Flight Automatic Control Research Institute,Xi'an 710065,China

Received Date: 2015-11-14
Rev Recd Date: 2015-12-15
Publish Date: 2016-07-25

Keywords:

Abstract: Reducing the deviation of light path in cavity can improve mechanically dithered RLG vibration performance. The mechanism of the deviation of light path in the cavity of mechanically dithered RLG was analyzed and simulated. According to the results, the main reasons of light path deviation were dithered tangential inertial force and vibration impact inertial force. Meanwhile, the deviation of light path in cavity of RLG could change the RLG bias produced by Langmuir flow. The two main effective means of reducing Langmuir flow bias produced by vibration and improving gyro vibration performance were decreasing working current and improving stability of light path in cavity. The mechanism of mechanically dithered RLG light path deviation was validated by test. Compared with vibration test results of different working current, the vibration performance of RLG is improved obviously by reducing working current. The means of improving vibration performance by decreasing working current and increasing stability of light path is put forward, which is useful to improve vibration performance of mechanically dithered RLG and reform for the further development of RLG.