• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Aerospace and Electronic Systems Magazine >Reduced minimum configuration fiber optic gyro for land navigation applications
【24h】

Reduced minimum configuration fiber optic gyro for land navigation applications

机译：减少了用于陆地导航应用的最小配置光纤陀螺仪

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Further cost reduction of the fiber optic gyroscope is necessary to meet the economic requirements of land navigation systems. Previous concentration was on the reduction of the number of splices and component improvements in the open-loop minimum configuration. Now non-essential components and splices are eliminated. The source-detector coupler is not part of the Sagnac interferometer, and serves solely to direct light from the interferometer into the output photodetector. Many commercial laser diodes incorporate a back-facet photodetector to monitor laser intensity. The signal returned from the Sagnac traverses the laser, and can be detected at this photodetector. The gyro signal can be distinguished from the laser signal by the bias modulation applied in the interferometer. Configuring a gyro in this manner eliminates a directional coupler and the separate photodetector, as well as up to two fiber splices in an all-fiber gyroscope. A production, open-loop fiber optic gyroscope has been modified to demonstrate this principle. The gyroscope exhibits performance comparable to the conventional minimum configuration.
机译：为了满足陆地导航系统的经济要求，必须进一步降低光纤陀螺仪的成本。以前的重点是减少开环最小配置中的接头数量和改善组件。现在消除了不必要的组件和接头。源-探测器耦合器不是Sagnac干涉仪的一部分，仅用于将来自干涉仪的光导入输出光电探测器。许多商用激光二极管都装有背面光电检测器来监视激光强度。从Sagnac返回的信号穿过激光，并且可以在此光电探测器上检测到。陀螺仪信号可以通过干涉仪中的偏置调制与激光信号区分开。以这种方式配置陀螺仪可消除定向耦合器和单独的光电检测器，以及全光纤陀螺仪中的多达两个光纤接头。已对量产的开环光纤陀螺仪进行了修改，以演示该原理。陀螺仪的性能可与常规最小配置媲美。

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