守时用小型氢原子钟的研制  

The Development and Experimental Results on the Miniature Hydrogen Maser for Time-keeping

作　　者：翟造成[1] 林传富[1] 何建卫[1] 黄亨祥[1] 陆家复[1] 沈季良[1] 彭纪兴[1] 

机构地区：[1]中国科学院上海天文台

出　　处：《计量学报》1994年第4期276-280,共5页Acta Metrologica Sinica

摘　　要：本文报告了一种守时用小型氢原子钟的设计和研制。该钟应用了一个精密的电容式谐振腔，由于其体积很小，从而使钟的整体体积和重量较通常的氢钟大大减小。腔的Ｑ值采用正反馈获得增益，从而能维持氢脉泽振荡并改善信号的信噪比。由于采用了腔频自动调谐系统，钟的长期稳定度可与通常的氢钟相比。A miniature hydrogen maser standard for time-keeping has been developed successfully at Shanghai Observatory. The maser employs a compact cavity design, resulting in significant size and weight reductions compared with conventional hydrogen maser. The Q value of the compact cavity can be enhanced effectively by using a positive feedback into the cavity. The long-term stability of the maser standard can be improved by a cavity auto-tuner system. This paper describes the design and development of the new maser, as well as the performance data.

关 键 词：频率标准 氢原子钟 守时 原子频际 频率测量 

分 类 号：TM935.11[电气工程—电力电子与电力传动]