Performance of hydrogen maser and its usage in local atomic time at NTSC

	Performance of hydrogen maser and its usage in local atomic time at NTSC
	Yuan Haibo ; Wang Zhengming ; Dong Shaowu
	2007
会议名称	Joint IEEE International Frequency Control Symposium/21st European Frequency and Time Forum
会议日期	MAY 29-JUN 01, 2007
会议地点	Geneva, SWITZERLAND
英文摘要	The advantage of a hydrogen maser is in its short-term stability, however, with the same hydrogen masers, their performance are different. In 2004, four hydrogen masers were bought to time keeping laboratory of NTSC, two of which were made in USA, and the other two in China. In order to make full use of the hydrogen masers, it is necessary to study their performance which includes the short-term stability, long-term stability, noise, frequency drift etc. Through the exhaustive study and analysis one could exactly know their different performances, and consequently different methods could be studied when they participate in the calculation of local atomic time (TA). In this paper, the performances of the four hydrogen masers are discussed with the emphasis on the two hydrogen masers made in America, by analyzing the data which are obtained from the time comparison system at NTSC, and then the method of how to use them in the calculation of TA(NTSC) is studied. By using the method, the short-term stability of TA(NTSC) increases obviously.
收录类别	CPCI
产权排序	1
会议主办者	IEEE
会议录	PROCEEDINGS OF THE 2007 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM-JOINTLY WITH THE 21ST EUROPEAN FREQUENCY AND TIME FORUM, VOLS 1-4
语种	英语
ISBN号	978-1-4244-0646-3
内容类型	会议论文
源URL	[http://210.72.145.45/handle/361003/5344]
专题	国家授时中心_时间频率基准实验室
推荐引用方式 GB/T 7714	Yuan Haibo,Wang Zhengming,Dong Shaowu. Performance of hydrogen maser and its usage in local atomic time at NTSC[C]. 见:Joint IEEE International Frequency Control Symposium/21st European Frequency and Time Forum. Geneva, SWITZERLAND. MAY 29-JUN 01, 2007.