基于晶体共振器引脚之间的相位移的补偿方法
Zhiqi Li1, Jiale Peng1, Miao Miao1
1School of Mechano-Electronic Engineering, Xidian University, Xi'an 710071, China.
Sensors (Basel, Switzerland)
|February 13, 2025
概括
这项研究引入了一种新的方法,可以在没有外部引用的情况下增强烤箱控制晶振荡器 (OCXO) 的稳定性. 实时相位转移测量可实现自我校准,显著减少频率漂移并改善长期稳定性.
科学领域:
- 电气工程 电气工程
- 物理 物理学 物理
- 计量学 计量学 计量学
背景情况:
- 烤箱控制的水晶振荡器 (OCXO) 对于精确的频率产生至关重要.
- 长期的频率漂移仍然是OCXO性能的一个重大挑战.
- 往往需要外部参考来源来缓解漂移,增加复杂性和成本.
研究的目的:
- 开发一种自我校准方法,以提高OCXO的长期频率稳定性.
- 在OCXO漂移补偿中消除对外部参考来源的需求.
- 建立一个实时监控和纠正晶振器频率偏移的系统.
主要方法:
- 建立一个线性等效的数学模型,将晶体共振器相位转移与输出频率联系起来.
- 实时测量晶体共振器引脚之间的相位变化,以确定频率漂移.
- 基于开发的模型和测量,实施自校准频率控制系统.
主要成果:
- OCXO漂移率从1.53×10−10/天提高到9.8×10−12/天.
- 频率偏移在三天后降至5.24 x 10-11 .
- 长期频率稳定性从1.16×10−11/1000s和3.24×10−11/10,000s提高到3.47×10−12/1000s和1.05×10−11/10,000s,从1.16×10−11/1000s和3.24×10−11/10,000s提高到3.47×10−12/1000s和1.05×10−11/10,000s.
结论:
- 提出的自我校准方法有效地提高了OCXO的长期频率稳定性.
- 实时相位转移监控提供了评估和纠正频率偏移的准确手段.
- 这种技术提供了一个可行的解决方案,可以在没有外部引用的情况下提高OCXO的性能.
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