| 基于双频激光干涉仪的角速率检测系统精度分析 |
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| 引用本文： | 张大军,刘合朋,刘军,闵跃军,钟正虎.基于双频激光干涉仪的角速率检测系统精度分析[J].导航与控制,2017,16(4):65-71. |
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| 作者姓名： | 张大军 刘合朋 刘军 闵跃军 钟正虎 |
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| 作者单位： | 北京航天控制仪器研究所,北京,100039 |
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| 基金项目： | 国家重大科学仪器设备开发专项 |
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| 摘 要： | 为了能够精确检测到测试转台在低速运行下的角速率,设计了一种基于双频激光干涉仪的角速率精度检测系统.首先,对本检测系统各项误差进行机理分析.然后,综合各项误差项建立总体相对误差模型.最终,通过仿真分析得到各个误差因子对相对误差项的影响,为保证检测系统相对精度提供理论依据,能够满足对高精度惯性器件测试转台低速段0.0001(°)/s~1(°)/s速率检测要求.
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| 关 键 词： | 测试转台 低速 角速率测量 双频激光干涉 精度分析 |
Precision Analysis on Angular Rate Measurement System
Based on Dual-frequency Laser Interferometer |
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| ZHANG Da-jun,LIU He-peng,LIU Jun,MIN Yue-jun and ZHONG Zheng-hu.Precision Analysis on Angular Rate Measurement System
Based on Dual-frequency Laser Interferometer[J].Navigation and Control,2017,16(4):65-71. |
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| Authors: | ZHANG Da-jun LIU He-peng LIU Jun MIN Yue-jun and ZHONG Zheng-hu |
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| Affiliation: | Beijing Institute of Aerospace Control Devices,Beijing 100039,Beijing Institute of Aerospace Control Devices,Beijing 100039,Beijing Institute of Aerospace Control Devices,Beijing 100039,Beijing Institute of Aerospace Control Devices,Beijing 100039 and Beijing Institute of Aerospace Control Devices,Beijing 100039 |
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| Abstract: | In order to accurately measure angular rate of the test turn-table running at low speeds, an angular rate measurement system based on dual-frequency laser interferometer is designed. Therefore, the mechanism of the errors of the detection system is analyzed. Then, its whole error model integrating relative error terms is established. Finally, calculated by simulation, the influence of error factors to relative error terms is obtained. The theory basis for ensuring measurement systematic accuracy is provided. At last, when high precision inertial components test turntable is running at low speed of 0. 0001(°)/s~1(°)/s, angular rate measurement is achieved. |
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| Keywords: | test turn-table low speed angular rate measurement dual-frequency laser interferometer precision analysis |
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