Magnetometer utilizing SQUID pico-voltmeter and cooled normal pickup coil

Tong Qing Yang; Kenichiro Yao; Daisuke Yamasaki; Keiji Enpuku

doi:10.1016/j.physc.2005.01.080

Magnetometer utilizing SQUID pico-voltmeter and cooled normal pickup coil

Tong Qing Yang
, Kenichiro Yao
, Daisuke Yamasaki
, Keiji Enpuku

超伝導システム工学

研究成果: ジャーナルへの寄稿 › 会議記事 › 査読

1 被引用数 (Scopus)

抄録

Magnetometer utilizing a high-T_c SQUID pico-voltometer and cooled normal pickup coil has been developed. The pickup coil was made of copper wire, and cooled to T = 77 K in order to decrease thermal noise from resistance. Total voltage noise of the SQUID pico-voltmeter with a cooled pickup coil was 124 pV/Hz^1/2 and 96 pV/Hz^1/2 at 100 Hz and 1 kHz, respectively, when resistance of the coil was 1.5 Ω. The magnetic field noise of the magnetometer was 130 pT/Hz^1/2 and 10 pT/Hz ^1/2 at 100 Hz and 1 kHz for the pickup coil with 4.4 mm diameter, respectively. Application of the magnetometer to non-destructive evaluation was presented. It is shown that small crack inside Cu plate can be detected with this system in unshielded environment. It was also shown that scanning of the pickup coil in unshielded environment is possible without degradation of the system performance.

本文言語	英語
ページ（範囲）	1596-1600
ページ数	5
ジャーナル	Physica C: Superconductivity and its Applications
巻	426-431
号	II
DOI	https://doi.org/10.1016/j.physc.2005.01.080
出版ステータス	出版済み - 2005
イベント	Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity - 継続期間: 11月 23 2004 → 11月 25 2004

!!!All Science Journal Classification (ASJC) codes

電子材料、光学材料、および磁性材料
凝縮系物理学
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/j.physc.2005.01.080

他のファイルとリンク

引用スタイル

@article{7c548c6a143a4c448424d69f42709c6f,

title = "Magnetometer utilizing SQUID pico-voltmeter and cooled normal pickup coil",

abstract = "Magnetometer utilizing a high-Tc SQUID pico-voltometer and cooled normal pickup coil has been developed. The pickup coil was made of copper wire, and cooled to T = 77 K in order to decrease thermal noise from resistance. Total voltage noise of the SQUID pico-voltmeter with a cooled pickup coil was 124 pV/Hz1/2 and 96 pV/Hz1/2 at 100 Hz and 1 kHz, respectively, when resistance of the coil was 1.5 Ω. The magnetic field noise of the magnetometer was 130 pT/Hz1/2 and 10 pT/Hz 1/2 at 100 Hz and 1 kHz for the pickup coil with 4.4 mm diameter, respectively. Application of the magnetometer to non-destructive evaluation was presented. It is shown that small crack inside Cu plate can be detected with this system in unshielded environment. It was also shown that scanning of the pickup coil in unshielded environment is possible without degradation of the system performance.",

author = "Yang, \{Tong Qing\} and Kenichiro Yao and Daisuke Yamasaki and Keiji Enpuku",

year = "2005",

doi = "10.1016/j.physc.2005.01.080",

language = "English",

volume = "426-431",

pages = "1596--1600",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier B.V.",

number = "II",

note = "Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity ; Conference date: 23-11-2004 Through 25-11-2004",

}

TY - JOUR

T1 - Magnetometer utilizing SQUID pico-voltmeter and cooled normal pickup coil

AU - Yang, Tong Qing

AU - Yao, Kenichiro

AU - Yamasaki, Daisuke

AU - Enpuku, Keiji

PY - 2005

Y1 - 2005

N2 - Magnetometer utilizing a high-Tc SQUID pico-voltometer and cooled normal pickup coil has been developed. The pickup coil was made of copper wire, and cooled to T = 77 K in order to decrease thermal noise from resistance. Total voltage noise of the SQUID pico-voltmeter with a cooled pickup coil was 124 pV/Hz1/2 and 96 pV/Hz1/2 at 100 Hz and 1 kHz, respectively, when resistance of the coil was 1.5 Ω. The magnetic field noise of the magnetometer was 130 pT/Hz1/2 and 10 pT/Hz 1/2 at 100 Hz and 1 kHz for the pickup coil with 4.4 mm diameter, respectively. Application of the magnetometer to non-destructive evaluation was presented. It is shown that small crack inside Cu plate can be detected with this system in unshielded environment. It was also shown that scanning of the pickup coil in unshielded environment is possible without degradation of the system performance.

AB - Magnetometer utilizing a high-Tc SQUID pico-voltometer and cooled normal pickup coil has been developed. The pickup coil was made of copper wire, and cooled to T = 77 K in order to decrease thermal noise from resistance. Total voltage noise of the SQUID pico-voltmeter with a cooled pickup coil was 124 pV/Hz1/2 and 96 pV/Hz1/2 at 100 Hz and 1 kHz, respectively, when resistance of the coil was 1.5 Ω. The magnetic field noise of the magnetometer was 130 pT/Hz1/2 and 10 pT/Hz 1/2 at 100 Hz and 1 kHz for the pickup coil with 4.4 mm diameter, respectively. Application of the magnetometer to non-destructive evaluation was presented. It is shown that small crack inside Cu plate can be detected with this system in unshielded environment. It was also shown that scanning of the pickup coil in unshielded environment is possible without degradation of the system performance.

UR - https://www.scopus.com/pages/publications/25644443883

UR - https://www.scopus.com/pages/publications/25644443883#tab=citedBy

U2 - 10.1016/j.physc.2005.01.080

DO - 10.1016/j.physc.2005.01.080

M3 - Conference article

AN - SCOPUS:25644443883

SN - 0921-4534

VL - 426-431

SP - 1596

EP - 1600

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - II

T2 - Proceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity

Y2 - 23 November 2004 through 25 November 2004

ER -

Magnetometer utilizing SQUID pico-voltmeter and cooled normal pickup coil

抄録

!!!All Science Journal Classification (ASJC) codes

文献へのアクセス

他のファイルとリンク

フィンガープリント

引用スタイル