摘要
北京大学实验室实现了光抽运铯束频标数字微波调频及数字伺服锁定。频率秒级稳定度达到１１×１０－１１。实验中发现微波双频功率的不平衡对频标准确度影响很大。本文报告了实验结果，并给出了理论解释和计算。计算结果与实验数据符合得很好。
A digital frequency modulated optically pumped cesium beam frequency standard has been experimentally tested. A digital servo system has been applied to the frequency standard. The frequency stability of 1.1×10 -11 (1 second sampling time) is reported. In the experiment a strong influence of microwave power on accuracy has been observed and measured. A physical explanation and a theoreticcal calculation are given. The calculated result agrees with the experimental data well.
出处
《计量学报》
CSCD
北大核心
1998年第4期299-303,共5页
Acta Metrologica Sinica
关键词
铯束频标
数字调频
微波功率
频率准确度
Cesium beam frequency standard
Digital frequency modulation
Microwave power
Accuracy of frequency standard
