宇航计测技术 ›› 2017, Vol. 37 ›› Issue (4): 30-34.doi: 10.12060/j.issn.1000-7202.2017.04.07

• 论文 • 上一篇    下一篇

芯片级原子钟数字温控系统设计

胡二猛1；刘瑞元1；赵建业1   

  1. 1、北京大学信息科学技术学院电子系，北京 100871
  • 出版日期:2017-08-24 发布日期:2017-08-24
  • 作者简介:胡二猛（1992-），男，硕士研究生，主要研究方向：芯片级原子钟。
  • 基金资助:
    国家自然科学基金（61535001）

Design of Digital Temperature Control System for Chip-scale Atomic Clock

HU Er-meng1；LIU Rui-yuan1；ZHAO Jian-ye1   

  1. 1、Department of Electronics, School of Electronics Engineering and Computer Sciences, Peking University, Beijing 100871,China
  • Online:2017-08-24 Published:2017-08-24

PDF (PC)

被引次数

1

摘要： 随着美国国防部先进项目研究局（Defence Advanced Research Projects Agency，DARPA）对微型定位导航授时技术的提出以及无人驾驶技术的发展，芯片级原子钟的市场越来越受到重视。稳定度是衡量芯片级原子钟性能的关键指标，而温度又是影响芯片级原子钟稳定度指标的重要因素，因此高精度的温控系统是芯片级原子钟稳定度的保障。设计了一种高精度的数字温度控制系统，控温精度为2mK。经过对比测试，使用该系统的芯片级原子钟稳定度较以前有了较大的改善，千秒稳定度从7.57×10-12提高到4.99×10-12，处于世界先进水平。

关键词: 芯片级, 原子钟, 温度, 精度, 数字控温, 稳定度

Abstract: With the proposal of the Micro-PNT（Micro-Technology for Positioning, Navigation and Timing）by United States Department of Defense Advanced Projects Research Agency(DARPA) and the development of unmanned technology, the market of chip-scale atomic clock has attracted much attention.Stability is a key parameter of the performance of chip-scale atomic clock, which is affected by the accuracy of temperature control, so a high accuracy temperature-control system is very essential to the stability of chip-scale atomic clock.  A digital temperature-control system with high accuracy is designed，and its precision is 2mK. The test results show, the stability of chip-scale atomic clock is greatly improved from 7.57×10-12to 4.99×10-12, which is in a world level.

Key words: Chip scale, Atomic clock, Temperature, Accuracy, Digital temperature control, Stability

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