波谱学杂志 ›› 2007, Vol. 24 ›› Issue (4): 494-500.

• 祝贺邬学文先生八十华诞(专辑) • 上一篇    下一篇

铷原子频标数字伺服系统

曹远洪1,2,张贤谊1,2,康松柏1,2,钟达1,梅刚华1*   

  1. 1.波谱与原子分子物理国家重点实验室(中国科学院 武汉物理与数学研究所),湖北 武汉 430071;
    2.中国科学院 研究生院,北京 100049
  • 收稿日期:2007-04-02 修回日期:2007-04-23 出版日期:2007-12-05 发布日期:2007-12-05
  • 作者简介:曹远洪,男,四川宜宾人,博士研究生,主要从事铷原子频标的小型化研究,E-mail:sccyh@tom.com.*通讯联系人:梅刚华,电话:027-87197190,E-mail:mei@wipm.ac.cn.
  • 基金资助:

    “973”项目“原子频标物理与技术基础”子课题“铷原子频标的新方法和新技术” (2005CB724507).

A Digital Servo System for Rubidium Frequency Standards

CAO Yuan-hong1,2, ZHANG Xian-yi1,2, KANG Song-bai1,2, ZHONG Da1, MEI Gang-hua1*   

  1. 1.State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics(Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences), Wuhan 430071, China; 
    2.Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2007-04-02 Revised:2007-04-23 Online:2007-12-05 Published:2007-12-05
  • About author:*Corresponding author: Mei Gang-hua,Tel:027-87197190,E-mail:mei@wipm.ac.cn.
  • Supported by:

    “973”项目“原子频标物理与技术基础”子课题“铷原子频标的新方法和新技术” (2005CB724507).

摘要:

分析了铷频标内锁频环路相敏检波基本原理和数字伺服的基本方法. 采用单片机(MCU)、模数转换器(ADC)和数模转换器(DAC)设计了一种数字伺服系统. 利用该数字伺服系统,实现了铷原子频标的闭环锁定,短期稳定度指标达到一般商品铷钟水平.

关键词: 铷原子频标, 相敏检波, 数字伺服

Abstract:

Principles of synchronous phase detecting and digital servo for rubidium atomic frequency standards (RAFS) were discussed. A digital servo system for rubidium frequency standards was designed with microcontroller unit, ADC and DAC. Frequency locking of a RAFS using the servo system was realized. The resulting frequency stability reached the level of common commercial RAFS.

Key words: rubidium atomic frequency standard, software phase detecting, digital servo system

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