高温RF SQUID磁力仪射频振荡器

J4 ›› 2009, Vol. 27 ›› Issue (02): 113-.

• 论文 • 下一篇

高温RF SQUID磁力仪射频振荡器

赵静^{a, b},王君^{a, b},凌振宝^{a, b},刘光达^{a, b}

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

出版日期:2009-03-20 发布日期:2009-07-06
通讯作者: 王君(1955— ),男,山东乳山人,吉林大学教授,硕士生导师,主要从事传感器与智能仪器研究 E-mail:wangjun@jlu.edu.cn
作者简介:赵静(1982—〓),男,山东定陶人,吉林大学博士研究生,主要从事高温超导磁力(梯度)仪器研究,(Tel)86-13180813739(E-mail)zhaojing-8239@163.com; 王君(1955— ),男,山东乳山人,吉林大学教授,硕士生导师,主要从事传感器与智能仪器研究,(Tel)86-431-88502071(E-mail)wangjun@jlu.edu.cn.
基金资助:
国家高技术研究发展计划(863计划)重大基金资助项目(2006AA06A201)

Radio-Frequency Oscillator for

ZHAO Jing^{a, b},WANG Jun^{a, b},LING Zhen-bao^{a, b},LIU Guang-da^{a, b}

a. College of Instrumentation and Electrical Engineering; b. Key Laboratory of Geo-Exploration and Instrumentation of Education Ministry, Jilin University, Changchun 130061,China

Online:2009-03-20 Published:2009-07-06

摘要/Abstract

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。

关键词: 射频超导量子干涉器, 磁力仪, 射频振荡器, 信号衰减

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 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.

Key words: radio-frequency superconducting quantum interference devices (RF SQUID), magnetometer, radio-frequency oscillator, signal attenuating

中图分类号:

TN752.2

赵静,王君,凌振宝,刘光达. 高温RF SQUID磁力仪射频振荡器[J]. J4, 2009, 27(02): 113-.

ZHAO Jing,WANG Jun,LING Zhen-baoa, b,LIU Guang-da. Radio-Frequency Oscillator for[J]. J4, 2009, 27(02): 113-.

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高温RF SQUID磁力仪射频振荡器

Radio-Frequency Oscillator for

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