摘要
在被动型氢钟的研制工作中经常采用单频调制技术。该文根据其原理设计了试验电路,并观测到误差信号,实现了误差信号的分离,并且利用数字采集处理平台得到了误差的S曲线。最后实现了闭环锁定,测试了取样时间为100s时的频率稳定度,证明试验电路可以有效地实现误差信号的分离。
The single modulation frequency method is usually used in the passive H maser,and this paper based on this theory designs the experiment circuit,observes the error signal,achieves the discretion of the error signal,meanwhile,and gets the S curve by using the digital collecting instrument as well. Closed loop locked of the system has been done,and we test the 100s frequency stability,and attest that the experiment circuit can discrete the error signal effectively .
出处
《中国科学院上海天文台年刊》
2009年第1期122-127,共6页
Annals Shanghai Astronomical Observatory Chinese Academy of Sciences
基金
国家自然科学基金(No.10778704)项目资助课题
关键词
氢原子钟
快速调制
误差分离
Hydrogen maser —single modulation—discretion of error signal
