| 高温RF SQUID磁力仪射频振荡器 |
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| 引用本文： | 赵静,王君,凌振宝,刘光达.高温RF SQUID磁力仪射频振荡器[J].吉林大学学报(信息科学版),2009,27(2):113. |
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| 作者姓名： | 赵静 王君 凌振宝 刘光达 |
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| 作者单位： | 吉林大学 a. 仪器科学与电气工程学院;b. 地球信息探测仪器教育部重点实验室,长春 130061 |
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| 基金项目： | 国家高技术研究发展计划(863计划)重大基金 |
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| 摘 要： | 为了提高高温射频超导量子干涉器(RF SQUID:Radio-Frequency Superconducting Quantum Interference Device)磁力仪的磁场灵敏度和稳定性,设计了提供超导量子干涉器谐振回路偏置信号的射频振荡器。该振荡器采用频率连续可调的压控振荡器作为信号源,结合射频信号衰减电路产生SQUID器件所需功率的振荡信号。实验结果表明,该振荡器能产生549.75～947 MHz连续可调的射频信号,信号功率最低可达-98.97 dBm,满足SQUID器件的工作要求。
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| 关 键 词： | 射频超导量子干涉器 磁力仪 射频振荡器 信号衰减 |
Radio-Frequency Oscillator for HTS RF SQUID Magnetometer |
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| ZHAO Jing,WANG Jun,LING Zhen-bao,LIU Guang-da.Radio-Frequency Oscillator for HTS RF SQUID Magnetometer[J].Journal of Jilin University:Information Sci Ed,2009,27(2):113. |
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| Authors: | ZHAO Jing WANG Jun LING Zhen-bao LIU Guang-da |
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| Institution: | a. College of Instrumentation and Electrical Engineering; b. Key Laboratory of Geo-Exploration and Instrumentation of Education Ministry, Jilin University, Changchun 130061,China |
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| Abstract: | In order to improve magnetic field sensitivity and stability of the high-temperature RF SQUID(Rradio-Frequency Superconducting Quantum Interference Devices) magnetometer,a radio-frequency oscillator used to provide bias signal to resonant circuit of the superconducting quantum interference devices was designed.The voltage-controlled oscillator with adjustable continuously frequency was used as signal source,and radio-frequency signal attenuation circuit used to attenuate oscillation signal to meet the power... |
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| Keywords: | radio-frequency superconducting quantum interference devices (RF SQUID) magnetometer radio-frequency oscillator signal attenuating |
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