name:谢勇辉
sex:男
shrz:
channel:专家人才库
pic:http://sourcedb.shao.cas.cn/zw/zjrck/201412/P020****.jpg
url:http://sourcedb.shao.cas.cn/zw/zjrck/201412/t**_**.json
xklb:天文技术与方法
xl:博士研究生
dh:
zc:正高级工程师
zw:
yzbm:200030
dzyj:xyh@shao.ac.cn
txdz:上海市南丹路80号
grwy:
grjj:2007<\/span>年7<\/span>月于中科院武汉物理与数学所获得博士学位，主要从事被动型铷原子钟研究。2007<\/span>年9<\/span>月至今，在上海天文台时间频率研究室，从事被动型氢原子钟研究。<\/b><\/span>
<\/font><\/font><\/font><\/font><\/font>主要工作包括<\/span>
<\/font><\/font><\/font><\/font>一、被动型氢原子钟的研制和工程化<\/span>
<\/font><\/font><\/font><\/font>主导了氢原子钟用新型电极式微波谐振腔的研制和应用，该型腔具有腔Q<\/span>值高、填充因子高和加工精度高的优点，成功应用于我单位被动型氢原子钟，原子共振信号达到3dB<\/span>，为整机的频率稳定度指标达到国际水平提供了保障。目前应用该型腔的被动型氢原子钟已经达到10<\/span>台以上，其中最长连续运转时间已经超过2<\/span>年。验证了其技术优越性和工作可靠性。<\/span>
<\/font><\/font><\/font><\/font>开展了被动型氢原子钟工程化改造工作，工作重点是腔泡组件的抗振加固和电离源系统真空透波散热。经过结构优化设计和实际振动试验，设计了专用缓冲减振结构，优化了系统装调工艺。目前腔泡组件可以承受振动试验，试验后的各项性能指标达到设计要求。设计了新型电离源系统，相比传统结构具有更通畅的传热途径和更高的传热效率，可以在真空下有效降低电离泡的工作温度，同时射频传输通道不受影响。<\/span>
<\/font><\/font><\/font><\/font>二、新型氢原子钟的开发<\/span>
<\/font><\/font><\/font><\/font>为了进一步减轻被动型氢原子钟的体积和重量，开展了超小型氢钟的研制。目前已经完成超小型氢钟的原理验证和结构设计，整机尺寸为170mm<\/span>×200mm<\/span>×400mm<\/span>，重量小于15kg<\/span>。开展了相关关键技术攻关并掌握了相应技术，超小型腔泡组件的体积减小了50%<\/span>以上，同时电性能变化不大，腔Q<\/span>值大于6000<\/span>，原子储存时间1S<\/span>左右，原子信号增益达到了1.8dB<\/span>，原子线宽5Hz<\/span>。辅以配套的小型磁屏蔽、变容二极管等部件。构建了超小型氢原子钟验证系统，实测短期稳定度已经达到1.8x10-12\/t-1\/2<\/span>。<\/span>
<\/font><\/font><\/font><\/font>三、新技术、新方法的探索<\/span>
<\/font>探索了在氢原子钟上应用微波脉冲激励诱发Ramsey <\/span>条纹的技术，并开展了相关理论计算和实验研究，构建了氢原子Ramsey <\/span>条纹探测诱发和探测系统，摸索了系统配置和脉冲参数，成功测得了氢原子的Ramsey <\/span>条纹，其中心线宽仅为传统被动型氢原子钟的30%<\/span>，条纹信噪<\/font>比较高。<\/span><\/font><\/font><\/font><\/font><\/p>
hjjry:
dblz:　　摘选论文：<\/span><\/font><\/p>　　1. Yonghui Xie, Pengfei Chen, Tiexin Liu,etc.”Most recent result of pulsed microwave hydrogen <\/span>maser<\/span>，” <\/span><\/span>Frequency Control and the European Frequency and Time Forum (FCS), 2011 Joint Conference of the IEEE International<\/span><\/a><\/span>Proc eftf2011<\/span><\/font><\/p>　　2. Xie Yonghui, Dai Jiayua, Chen Wenxing,etc.,”Development of passive hydrogen maser in Shanghai Astronomical Observatory,” <\/span>Frequency Control and the European Frequency and Time Forum (FCS), <\/span><\/a><\/span>2010<\/span><\/font><\/p>　　3. <\/span>Yonghui Xie<\/span><\/a><\/span>,<\/span>Jiayu Dia<\/span><\/a><\/span>,<\/span>Wenxing Chen<\/span><\/a><\/span>,etc,” Study of main techniques of space passive hydrogen maser,” <\/span>China Satellite Navigation Conference (CSNC) 2012 Proceedings<\/span><\/a><\/span>, 160,2012,pp 547-55<\/span><\/font><\/p>　　4. <\/span>谢勇辉, <\/span>陈鹏飞, <\/span>林传富，“脉冲微波式氢原子钟初步结果,” <\/span>中国科学物理学力学天文学,2011,41(5)607-610.<\/span><\/span><\/font><\/p>　　5<\/span>．谢勇辉 等，“新型被动氢钟电极式微波腔的设计和仿真，”中国科学院上海天文台年刊，2010<\/span>，31.<\/span><\/span><\/font><\/p>　　6. <\/span>谢勇辉，林传富，“被动型氢原子钟原子跃迁谱线特性分析,” <\/span>中国科学院上海天文台年刊，2010<\/span>，31.<\/span><\/span><\/font><\/p>　　7. <\/span>陈鹏飞，谢勇辉，林传富，“脉冲微波式氢原子钟的研究进展，”计量学报，2012<\/span>，33<\/span>（2<\/span>）<\/span><\/font><\/p> 8<\/span>、<\/span>谢勇辉, <\/span>赵峰, <\/span>王芳等,<\/span>“用于气泡型铷频标的新型环极式微波腔” 计量学报，2008<\/span>，29<\/span>（4<\/span>）<\/span><\/font><\/font><\/p><\/p>
cdkyxmqk:
yjfx:
xmen:Yonghui Xie
education:
at:Professor
add:80 Nandan Road, Shanghai
dblz_en:　<\/font>摘选论文：<\/span><\/font><\/font><\/p>　　1. Yonghui Xie, Pengfei Chen, Tiexin Liu,etc.”Most recent result of pulsed microwave hydrogen <\/span>maser<\/span>，” <\/span><\/span>Frequency Control and the European Frequency and Time Forum (FCS), 2011 Joint Conference of the IEEE International<\/span><\/a><\/span>Proc eftf2011<\/span><\/font><\/p>　　2. Xie Yonghui, Dai Jiayua, Chen Wenxing,etc.,”Development of passive hydrogen maser in Shanghai Astronomical Observatory,” <\/span>Frequency Control and the European Frequency and Time Forum (FCS), <\/span><\/a><\/span>2010<\/span><\/font><\/p>　　3. <\/span>Yonghui Xie<\/span><\/a><\/span>,<\/span>Jiayu Dia<\/span><\/a><\/span>,<\/span>Wenxing Chen<\/span><\/a><\/span>,etc,” Study of main techniques of space passive hydrogen maser,” <\/span>China Satellite Navigation Conference (CSNC) 2012 Proceedings<\/span><\/a><\/span>, 160,2012,pp 547-55<\/span><\/font><\/p>　　4. <\/span>谢勇辉, <\/span>陈鹏飞, <\/span>林传富，“脉冲微波式氢原子钟初步结果,” <\/span>中国科学物理学力学天文学,2011,41(5)607-610.<\/span><\/span><\/font><\/p>　　5<\/span>．谢勇辉 等，“新型被动氢钟电极式微波腔的设计和仿真，”中国科学院上海天文台年刊，2010<\/span>，31.<\/span><\/span><\/font><\/p>　　6. <\/span>谢勇辉，林传富，“被动型氢原子钟原子跃迁谱线特性分析,” <\/span>中国科学院上海天文台年刊，2010<\/span>，31.<\/span><\/span><\/font><\/p>　　7. <\/span>陈鹏飞，谢勇辉，林传富，“脉冲微波式氢原子钟的研究进展，”计量学报，2012<\/span>，33<\/span>（2<\/span>）<\/span><\/font><\/p>
jl_en: