• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on fiber optic and laser sensors and applications >Grasp of the behavior of lock-in phenomenon and a manner to overcome it in brillouin fiber optic gyro
【24h】

Grasp of the behavior of lock-in phenomenon and a manner to overcome it in brillouin fiber optic gyro

机译：把握锁定现象的行为和克服布里渊光纤陀螺仪的方式

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Brillouin Fiber Optic Gyro (B-FOG) can detect angular velocity from the beat frequency between the two lasing Stokes lights that circulate in opposite directions in the fiber ring resonator. This means the B-FOG has inherently the beat output format suitable for navigation applications. However, B-FOG has a serious problem called "lock-in phenomenon". In lower rotation rate, frequency pulling effect occurs between the two Stokes lights due to backscattering in the resonator, and the beat signal is getting distorted and finally locked to zero. In this report, at first, we realize B-FOG and observe its output characteristics, including optical Kerr-effect induced bias and the lock-in phenomenon. Then, the detalls of the lock-in phenomenon are evaluated theoretically. Additionally, we propose a novel method to avoid the lock-in phenomenon by modulating the gyro output through the optical Kerr-effect in the fiber resonator. Finally, we verify this method experimentally.
机译：Brillouin光纤陀螺（B-FOG）可以从两个激动的斯托克斯灯之间的距离频率检测角度速度，该灯泡在光纤环谐振器中沿相反方向循环。这意味着B-FOG本质上具有适用于导航应用的节拍输出格式。然而，B-FOG具有一个称为“锁定现象”的严重问题。在较低的旋转速率下，由于在谐振器中反向散射而在两个斯托克斯灯之间发生频率拉动效果，并且拍号信号变形并最终锁定到零。在本报告中，首先，我们实现了B-FOG并观察其输出特性，包括光学克隆效应引起的偏置和锁定现象。然后，理论上评估锁定现象的剥离。另外，我们提出了一种新颖的方法来避免通过光纤谐振器中的光学卡尔效应调制陀螺仪的陀螺仪来避免锁定现象。最后，我们通过实验验证这种方法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号