| 一种新型中高频移相方法的实现 |
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| 引用本文： | 谭福耀,谢辉,李婕. 一种新型中高频移相方法的实现[J]. 江汉大学学报(自然科学版), 2008, 36(3): 28-31 |
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| 作者姓名： | 谭福耀 谢辉 李婕 |
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| 作者单位： | 武汉大学,电子信息学院,武汉,430079 |
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| 摘 要： | 针对中高频条件下现有移相技术所解决的移相的数字化、智能化、精度提高等问题,采用DS1020序列芯片配以外围测频及控制电路实现精确移相,系统具有电路简单、精确度高、实时性好等优点,对以后的移相技术应用有一定的借鉴意义.
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| 关 键 词： | 移相 微弱信号检测 频率测量 锁相放大器 |
New Realization of Phase-shifting in Median and High Frequency |
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| TAN Fu-yao,XIE Hui,LI Jie. New Realization of Phase-shifting in Median and High Frequency[J]. Journal of Jianghan University(Natural Sciences), 2008, 36(3): 28-31 |
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| Authors: | TAN Fu-yao XIE Hui LI Jie |
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| Affiliation: | (School of Electronic Information, Wuhan University, Wuhan 430079, China) |
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| Abstract: | Towards the difficulties of the present phase-shifting technology in median and high frequency,such as phase shifting digitization and intellectualized,the precision enhancement,here adopts a new method,using the DS1020 series chips combined with peripheral frequency measurement and control cricuit to realize the precise phase-shifting.The system has the characteristic of simple circuit,high precision,good synchronization,can be a good reference for the future phaseshifting technology. |
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| Keywords: | phase shifting weak signal detection frequency measurement lock-in amplifier |
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