摘要
氢脉泽是至今为止除极短时间测量间隔之外最稳定的频率标准 ,对于 1 0 4 s或更长的测量时间间隔 ,它的性能由于高 Q值谐振腔而引起频率漂移而变坏 .介绍了上海天文台为“92 1工程”
The hydrogen maser is the most stable frequency standard generally available today for all but the shortest measuring times. For long measuring times of 10 4s or longer, its performance typically deteriorates due to frequency drift of high Q resonant cavity. This paper will describe the performance of '921 project' hydrogen maser with cavity auto tuning.
出处
《应用基础与工程科学学报》
EI
CSCD
2000年第3期246-251,共6页
Journal of Basic Science and Engineering
关键词
氢脉泽
腔自动调谐
稳定度
hydrogen maser
cavity auto tuning
stability
