让老型氢钟焕发青春  

MaKe Old Masers Radiate Vigour of Their Youth

作　　者：翟造成[1] 黄亨祥[1] 林传富[1] 陆家复[1] 江国兴[1] 罗薇华[1] 

机构地区：[1]中国科学院上海天文台

出　　处：《陕西天文台台刊》1991年第1期89-94,共6页Publications of The Shaanxi Astronomical Observatiory

摘　　要：从1985年起,上海天文台对自己研制的3台老型氢钟进行了彻底的改造。两年的使用结果表明,100s以上的稳定度可达10^(-15),并可长期连续运转,工作颇为可靠。本文介绍老型氢钟改造所采用的主要技术以及改造后的性能和使用情况。Three old models of hydrogen masers which were developed at shanghai observatory have been reformed since 1985.Two Years,operations indicate that the stabilities reach E-15 for periods of time beyond 100 seconds, and the Masers are reliable.This paper describes the techniques used for reforming of old masers.The performances and operations of the reformed masers in VLBI observations are also introduced in this paper.

关 键 词：氢原子钟 使用性能 频率标准 

分 类 号：TH714.14[机械工程—测试计量技术及仪器]