SQUID magnetometer utilizing normal pickup coil and resonant-type coupling circuit

被引：12
|
作者：
Yang, TQ [1 ]
Enpuku, K [1 ]
机构：
[1] Kyushu Univ, Dept Elect, Higashi Ku, Fukuoka 8128581, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2003年 / 392卷
关键词：
high T-c SQUID; resonant coupling; cooled pickup coil; flux noise;
D O I：
10.1016/S0921-4534(03)00849-9
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have developed a high T-c superconducting quantum interference device (SQUID) magnetometer utilizing a Cu pickup coil cooled to T = 77 K and a resonant-type coupling circuit. The thermal noise can be decreased by cooling the pickup coil, while the signal transferred to the SQUID can be increased by using the resonant-type coupling circuit. Four pickup coils with different radii were used in the experiment. For the pickup coil with a radius r = 15 mm and the number of turns n = 150, we obtained the magnetic field noise of S-B(1/2) = 26 fT/Hz(1/2) at the resonant frequency of f(r) = 6.37 kHz. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：1396 / 1400
页数：5
相关论文
共 26 条
  • [21] Eddy current testing utilizing cooled normal pickup coil and superconducting quantum interference device picovoltmeter: Comparison between experiment and analysis
    Yao, Kenichiro
    Yang, Tong Qing
    Yamasaki, Daisuke
    Tazoh, Kazuya
    Enpuku, Keiji
    Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 2006, 45 (6 A): : 4994 - 4999
  • [22] Eddy current testing utilizing cooled normal pickup coil and superconducting quantum interference device picovoltmeter: Comparison between experiment and analysis
    Yao, Kenichiro
    Yang, Tong Qing
    Yamasaki, Daisuke
    Tazoh, Kazuya
    Enpuku, Keiji
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2006, 45 (6A): : 4994 - 4999
  • [23] The step-edge type HTS rf SQUID coupling with a LC circuit in ultra-low field NMR system
    Linghu Kehuan
    Guo Zhengshan
    Li Yulong
    Xu Tiequan
    Luo Wenhao
    Huang Zigeng
    Jin Yirong
    Zheng Dongning
    Wang Furen
    Gan Zizhao
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2019, 564 : 1 - 5
  • [24] Research on the Characteristic Change in an Inductive-Coupling-Type Contactless Power Transformer for a Railway According to the Core Shapes and Misalignment Utilizing a T-Type Equivalent Circuit
    Matsuoka, Hideki
    Watanabe, Shoichiro
    Koseki, Takafumi
    ELECTRICAL ENGINEERING IN JAPAN, 2016, 197 (04) : 73 - 82
  • [25] Research on the characteristic change in an inductive-coupling-type contactless power transformer for a railway according to the core shapes and misalignment utilizing a T-type equivalent circuit
    University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo
    113-8656, Japan
    IEEJ Trans. Ind Appl., 7 (746-754):
  • [26] Parallel Ring-Lines Type Rat-Race Circuit for Loose Coupling Utilizing Composite Right-/Left-Handed Transmission Lines
    Kawai, Tadashi
    Sumitomo, Yuma
    Enokihara, Akira
    Ohta, Isao
    Satoh, Kei
    Suzuki, Yasunori
    Okazaki, Hiroshi
    Narahashi, Shoichi
    2013 EUROPEAN MICROWAVE CONFERENCE (EUMC), 2013, : 298 - 301
123