高温RF SQUID磁力仪射频振荡器
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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。
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 requirements of the oscillation signal of the SQUID was also designed.The experiments showed that the oscillator can continuously produce adjustable 549.75～947 MHz radio-frequency signal,and the minimum signal power is-98.97 dBm,which meets the work requirements of the SQUID devices.
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 requirements of the oscillation signal of the SQUID was also designed.The experiments showed that the oscillator can continuously produce adjustable 549.75～947 MHz radio-frequency signal,and the minimum signal power is-98.97 dBm,which meets the work requirements of the SQUID devices.
引文
[1]张昌达.量子磁力仪研究和开发近况[J].物探与物化,2005,29(4):283-287.ZHANG Chang-da.Research and Development of Quantum Magnetometers[J].Geophysical&Geochemical Exploration,2005,29(4):283-287.
[2]陈林,李敬东,唐跃进,等.超导量子干涉仪发展和应用现状[J].低温物理学报,2005,27(z1):657-661.CHEN Lin,LI Jing-dong,TANG Yue-jin,et al.Superconducting Quantum Interference Devices:Applications and Perspec-tives[J].Chinese Journal of Low Temperature Physics,2005,27(z1):657-661.
[3]马平,杨涛,谢飞翔,等.高温超导量子干涉磁强计的发展现状及其应用[J].现代仪器,2001(5):28-30.MA Ping,YANG Tao,XIE Fei-xiang,et al.The Developments and Applications of High Tc SQUID Magnetometers[J].Modern Instruments,2001(5):28-30.
[4]范长鑫,邱经武,唐志明,等.射频超导量子干涉器及测量系统[J].复旦学报:自然科学版,1987,26(2):235-238.FAN Chang-xin,QIU Jing-wu,TANG Zhi-ming,et al.RF-SQUID and Measuring System[J].Journal of Fudan University:Natural Science Edition,1987,26(2):235-238.
[5]陈文升.超导地球物理仪器原理[M].北京:地震出版社,1988.CHEN Wen-sheng.Principle of Superconducting Physical Geography Instruments[M].Beijing:Earthquake Press,1988.
[6]ZHANG Y,SOLTNER H,ZANDER W,et al.HTS RF SQUIDs with Fully Integrated Planar Tank Circuit[J].Apll Super-cond,1997,7(2):2870-2873.
[7]张肃文.高频电子线路[M].北京:高等教育出版社,1990.ZHANG Su-wen.High-Frequency Electronic Circuit[M].Beijing:Higher Education Press,1990.
[8]陈晓东.高温超导磁强计研制[D].北京:中国地质大学,2006.CHEN Xiao-dong.Development of HTS RF SQUID Magnetometer[D].Beijing:China University of Geosciences,2006.
[9]白菊容.PIN二极管π型电调衰减器的设计[J].广西民族学院学报:自然科学版,2005,11(3):74-76.BAI Ju-rong.Design ofπType Electronic Attenuator of PINDiode[J].Journal of Guangxi University for Nationalities:Natu-ral Science Edition,2005,11(3):74-76.
[2]陈林,李敬东,唐跃进,等.超导量子干涉仪发展和应用现状[J].低温物理学报,2005,27(z1):657-661.CHEN Lin,LI Jing-dong,TANG Yue-jin,et al.Superconducting Quantum Interference Devices:Applications and Perspec-tives[J].Chinese Journal of Low Temperature Physics,2005,27(z1):657-661.
[3]马平,杨涛,谢飞翔,等.高温超导量子干涉磁强计的发展现状及其应用[J].现代仪器,2001(5):28-30.MA Ping,YANG Tao,XIE Fei-xiang,et al.The Developments and Applications of High Tc SQUID Magnetometers[J].Modern Instruments,2001(5):28-30.
[4]范长鑫,邱经武,唐志明,等.射频超导量子干涉器及测量系统[J].复旦学报:自然科学版,1987,26(2):235-238.FAN Chang-xin,QIU Jing-wu,TANG Zhi-ming,et al.RF-SQUID and Measuring System[J].Journal of Fudan University:Natural Science Edition,1987,26(2):235-238.
[5]陈文升.超导地球物理仪器原理[M].北京:地震出版社,1988.CHEN Wen-sheng.Principle of Superconducting Physical Geography Instruments[M].Beijing:Earthquake Press,1988.
[6]ZHANG Y,SOLTNER H,ZANDER W,et al.HTS RF SQUIDs with Fully Integrated Planar Tank Circuit[J].Apll Super-cond,1997,7(2):2870-2873.
[7]张肃文.高频电子线路[M].北京:高等教育出版社,1990.ZHANG Su-wen.High-Frequency Electronic Circuit[M].Beijing:Higher Education Press,1990.
[8]陈晓东.高温超导磁强计研制[D].北京:中国地质大学,2006.CHEN Xiao-dong.Development of HTS RF SQUID Magnetometer[D].Beijing:China University of Geosciences,2006.
[9]白菊容.PIN二极管π型电调衰减器的设计[J].广西民族学院学报:自然科学版,2005,11(3):74-76.BAI Ju-rong.Design ofπType Electronic Attenuator of PINDiode[J].Journal of Guangxi University for Nationalities:Natu-ral Science Edition,2005,11(3):74-76.
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