| 流动VLBI站氢原子钟的研制与性能测试 |
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| 引用本文： | 张为群,林传富,于双林,张一平,王关忠,张健,杨佩红.流动VLBI站氢原子钟的研制与性能测试[J].天文学报,2001,42(1):94-100. |
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| 作者姓名： | 张为群 林传富 于双林 张一平 王关忠 张健 杨佩红 |
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| 作者单位： | 中国科学院上海天文台 |
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| 摘 要： | 氢脉泽是射电天文所必需的频率标准.文中对为流动vLBI站研制的新一代氢脉泽的物理结构特点进行了讨论，包括对腔泡结构、磁屏蔽、原子束光学系统等.同时性能测试表明在80秒到1天之间频率稳定度优于1×10
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| 关 键 词： | 氢脉泽 频率稳定度 基长基线干涉测量仪 腔泡结构 氢原子钟 磁屏蔽 |
A STUDY AND PERFORMANCE
EVALUATION OF HYDROGEN MASER USED IN MOBILE VLBI STATIONS |
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| ZHANG Wei-Qun,LIN Chuan-Fu,YU Shuang-Lin,ZHANG Yi-Ping,WANG Guan-Zhong,ZHANG Jian,YANG Pei-Hong.A STUDY AND PERFORMANCE
EVALUATION OF HYDROGEN MASER USED IN MOBILE VLBI STATIONS[J].Acta Astronomica Sinica,2001,42(1):94-100. |
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| Authors: | ZHANG Wei-Qun LIN Chuan-Fu YU Shuang-Lin ZHANG Yi-Ping WANG Guan-Zhong ZHANG Jian YANG Pei-Hong |
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| Abstract: | The H maser is an essential frequency reference standard for radio astronomy. This paper provides information about the design and specifications of a new generation of the H maser for the Chinese mobile VLBI stations, including the improvement of the cavity bulb, magnetic shields and atomic beam optics. The performance measurements show that the frequency stability is a little better than 1*E 14 for time interval from 80 s to 1 day. |
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| Keywords: | hydrogen maser frequency stability VLBI time synchronization |
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