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首页> 外文期刊>Metrology and Measurement Systems: Metrologia i Systemy Pomiarowe >A DYNAMIC ANGLE METROLOGY SYSTEM BASED ON FIBRE-OPTIC GYROSCOPE AND ROTARY TABLE
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A DYNAMIC ANGLE METROLOGY SYSTEM BASED ON FIBRE-OPTIC GYROSCOPE AND ROTARY TABLE

机译：一种基于光纤陀螺仪和旋转台的动态角度计量系统

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摘要

Dynamic angle measurement (DAM) plays an important role in precision machining, aerospace, military and artificial intelligence. Because of its advantages including high sensitivity, solid state and miniaturization, fibre-optic gyroscope (FOG) has great application prospects in the field of DAM. In this paper, we propose a dynamic angle metrology method based on FOG and a rotary table to evaluate the DAM accuracy with FOG. The system synchronously collects data from the FOG and rotary table, and analyses the DAM accuracy of the FOG for different sway conditions compared with that of the angle obtained from the rotary table. An angle encoder in the rotary table provides absolute or incremental angular displacement output with angular displacement measurement accuracy of 10" (0.0028°) and angular displacement repeat positioning accuracy of 3" (0.00083°), and can be used as an angle reference. The experimental results show that the DAM accuracy of the FOG is better than 0.0028° obtained with the angular encoder, and the absolute DAM accuracy of the FOG is better than 0.0048° for given conditions. At the same time, for the multi-path signal synchronization problem in the metrology field, this paper proposes a signal delay measurement method combining test and algorithm procedures, which can control a delay within 25 μs.
机译：动态角度测量（DAM）在精密加工，航空航天，军事和人工智能中起着重要作用。由于其优点包括高灵敏度，固态和小型化，纤维 - 光学陀螺（雾）在大坝领域具有很大的应用前景。本文提出了一种基于雾和旋转台的动态角度计量方法，以评估雾坝精度。该系统同步地从雾和旋转表中收集数据，并与从旋转台获得的角度相比，分析不同摇摆条件的雾精度。旋转台中的角度编码器提供了具有10“（0.0028°）的角位移测量精度的绝对或增量角位移输出，并且角位移重复定位精度为3”（0.00083°），并且可以用作角度参考。实验结果表明，用角度编码器获得雾的大坝精度优于0.0028°，雾的绝对坝精度优于给定条件优于0.0048°。同时，对于计量场中的多路径信号同步问题，本文提出了一种信号延迟测量方法，其组合测试和算法过程，可以控制25μs内的延迟。

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