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精密惯性传感的单元双干扰仪:作为激光频率稳定参考的子皮科米特结构稳定性和性能.

Victor Huarcaya1, Miguel Dovale Álvarez1, Kohei Yamamoto1

  • 1Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut) and Institut für Gravitationsphysik, Leibniz Universität Hannover, Callinstrasse 38, D-30167 Hannover, Germany.

Sensors (Basel, Switzerland)
|December 23, 2023
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概括

未来的地球测量任务可以使用一种新的激光干扰仪来提高加速度计的性能. 这项技术实现了亚皮科米特位移传感,这对于气候和水资源研究至关重要.

关键词:
惯性传感器是一种惯性传感器.激光干扰计是指激光干扰计.的光学读取输出.

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科学领域:

  • 地测学和地球观测研究
  • 光学物理和仪器仪表学
  • 先进的传感器技术技术的传感器技术.

背景情况:

  • 未来的地理测量任务需要提高加速度计的性能,以提高科学成果.
  • 加速度计中的当前电容传感器仅限于~100分钟的精度.
  • 对于激光干扰仪的毫赫兹精度,需要采用子皮克米位移传感器.

研究的目的:

  • 描述一款用于激光频率稳定的新型马赫-泽恩德干扰仪的性能.
  • 为了展示一个紧的,单立体的基于光学的干扰仪,用于增强的加速度计技术.
  • 为测试质量询问引入"单元双干扰仪" (SEDI) 概念.

主要方法:

  • 使用马赫-泽恩德干扰仪与定制设计的单立体五镜.
  • 采用了商用纤维注入器,用于光束分裂/重组的 pentaprism 和两个光接收器.
  • 实现了反循环,使用平衡检测信号来稳定激光频率.

主要成果:

  • 获得的分数频率不稳定性优于6 x 10^-13.
  • 演示的干扰仪路径长度稳定性好于1pm/√Hz.
  • 设计了一种双干扰仪镜,用于同时稳定频率和测试质量询问.

结论:

  • 开发的紧干涉仪为向子皮科米特加速度计技术提供了可行的途径.
  • 这一进步对气候监测,水资源管理和减少灾害风险产生了重大影响.
  • 对于未来的高精度地测任务,SEDI概念提供了一个有前途的综合光学解决方案.