| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2009-09-04 |
| タイトル |
|
|
タイトル |
Development of Digital FLL System for SQUID Using Double Counter Method |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Double-counter method |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
flux-locked loop (FLL) |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
magnetically unshielded |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
magnetocardiogram |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
SQUID |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
Oyama, Daisuke
Kobayashi, Koichiro
Yoshizawa, Masahito
Uchikawa, Yoshinori
|
| 著者(機関) |
|
|
値 |
Faculty of Engineering, Iwate University |
| 著者(機関) |
|
|
値 |
Faculty of Engineering, Iwate University |
| 著者(機関) |
|
|
値 |
Faculty of Engineering, Iwate University |
| 著者(機関) |
|
|
値 |
College of Science and Engineering, Tokyo Denki University |
| 登録日 |
|
|
日付 |
2009-09-04 |
| 書誌情報 |
IEEE Transactions on Magnetics
巻 42,
号 10,
p. 3539-3541,
発行日 2006-01-01
|
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0018-9464 |
| Abstract |
|
|
内容記述タイプ |
Other |
|
内容記述 |
We have developed a digitally controlled flux-locked loop (FLL) system using a double-counter method to achieve both high performance and low cost. This system is composed of generally used electric devices. The system slew rate is about 1.3 k Phi0/s, where Phi0 is the flux quantum. The measurable flux amplitude and dynamic range are 218 Phi0 and 141 dB at 1 Hz and 22 Phi 0 and 121 dB at 10 Hz, respectively. A white noise level measured in the magnetically shielded room (MSR) is 36.1 fT/Hz1/2 . Magnetic measurements with a first-order gradiometer were done outside the MSR, and the developed system can detect a magnetocardiogram in an unshielded condition |
| 出版者 |
|
|
出版者 |
IEEE |
| 権利 |
|
|
権利情報 |
© 2006 IEEE |
| DOI |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1109/TMAG.2006.879162 |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
itm-v42i10p3539-3541.pdf (371.2 kB)
