| 多通道双混频时差测量系统的实现 |
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| 引用本文： | 张爱敏,高小殉,宁大愚,王伟波,苏志强,杜向伟,冯卫.多通道双混频时差测量系统的实现[J].计量学报,2009,30(6). |
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| 作者姓名： | 张爱敏 高小殉 宁大愚 王伟波 苏志强 杜向伟 冯卫 |
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| 作者单位： | 1. 中国计量科学研究院,北京,100013
2. 石家庄无线电四厂,河北,石家庄,050011 |
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| 摘 要： | 基于双混频时差技术设计研制了8通道的频率稳定度测量系统,实现了对8路5 MHz或10 MHz频率标准的测量.当频率为10 MHz取样时间为1 s时,系统噪声本底优于2.0 X 10~(-13),取样时间为1000 s时,系统噪声本底优于2.5×10~(-16).不但可以满足原子时标基准原子钟组的内部比对,也可实现对一般频率标准的检定和校准.
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| 关 键 词： | 计量学 时间频率 双混频时差 频率稳定度 频标比对器 |
Realization of 8-channel DMTD Measurement System |
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| ZHANG Ai-min,GAO Xiao-xun,NING Da-yu,WANG Wei-bo,SU Zhi-qiang,DU Xiang-wei,FENG Wei.Realization of 8-channel DMTD Measurement System[J].Acta Metrologica Sinica,2009,30(6). |
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| Authors: | ZHANG Ai-min GAO Xiao-xun NING Da-yu WANG Wei-bo SU Zhi-qiang DU Xiang-wei FENG Wei |
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| Abstract: | Based on the technique of Dual Mixer Time Difference (DMTD), an 8-channel frequency stabilitymeasurement system has been developed. It realized the measurement of 8-channel 5 MHz and 10 MHz frequencystandards. For 10 MHz frequency, the noise floor is better than 2.0 ×10~(-13)/1 s, 2.5× 10~(-16)/1000 s. It can not only satisfy the internal comparison of time scale ensemble, but also can realize the calibration of normal frequency standards. |
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| Keywords: | Metrology Time and frequency Dual mixer time difference Frequency stability frequency comparator |
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