| 开环光纤陀螺的数字接口研究 |
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| 引用本文： | 杨远洪,张惟叙,江兴流.开环光纤陀螺的数字接口研究[J].北京航空航天大学学报,2003,29(1):43-45. |
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| 作者姓名： | 杨远洪 张惟叙 江兴流 |
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| 作者单位： | 1.北京航空航天大学 宇航学院 |
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| 摘 要： | 为了提高开环光纤陀螺(FOG)的性能,对它的输出进行了分析并建立了相应的数学模型.在此基础上设计了一种数字化接口,该接口是一种小型的微控制系统,由增益可控的A/D转换器和相应控制软件组成并具有自动分档功能,它除了将开环FOG的模拟输出数字化外,还实现了数字输出的线性化.利用一种全保偏开环FOG进行了实验研究,在采用这种接口后,FOG的输出在±100°s范围内,其标度非线性值可由10－2量级减小到10－4量级.
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| 关 键 词： | 数字接口 线性化 分档 光纤陀螺 |
| 文章编号： | 1001-5965(2003)01-0043-03 |
| 收稿时间： | 2001-07-06 |
| 修稿时间： | 2001年7月6日 |
Digital interface for open-loop FOG |
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| Yang Yuanhong,Zhang Weixu,Jiang Xinliu.Digital interface for open-loop FOG[J].Journal of Beijing University of Aeronautics and Astronautics,2003,29(1):43-45. |
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| Authors: | Yang Yuanhong Zhang Weixu Jiang Xinliu |
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| Institution: | 1.School of Astronautics, Beijing University of Aeronautics and Astronautics2. Beijing University of Aeronautics and Astronautics |
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| Abstract: | To improve the performance of open loop fiber optical gyroscope (FOG), a mathematical model was presented to get its linear digital output. Based on this model, a digital interface was designed, which is a micro control system consisting of gain control able A/D converter and control software and able to auto range and convert analog output to linear digital output. Experimental study was also made with an all polarization maintain open loop FOG. The results showed that, with using the above interface, the nonlinearity of FOG can be effectively reduced. |
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| Keywords: | digital interface linearization range fiber optical gyroscope |
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