Автор |
Youichi Takada |
Автор |
Keiji Tsukada |
Автор |
Akira Adachi |
Дата выпуска |
1996-04-01 |
dc.description |
A SQUID gradiometer with a glass package and trimmable additional positive feedback (APF) is developed to achieve a low equivalent flux noise over a wide range of bias current. The noise characteristics of a SQUID with APF are investigated by varying the APF gain and the bias current. We found the most suitable APF parameter to achieve low equivalent flux noise over a wide range of bias current. When a SQUID with APF has a co-planar first-order coil whose effective area is , a typical gradiometer noise level of at 100 Hz and at 1 Hz is achieved. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
A SQUID gradiometer with trimmable additional positive feedback |
Тип |
paper |
DOI |
10.1088/0953-2048/9/4A/031 |
Electronic ISSN |
1361-6668 |
Print ISSN |
0953-2048 |
Журнал |
Superconductor Science and Technology |
Том |
9 |
Первая страница |
A120 |
Последняя страница |
A123 |
Аффилиация |
Youichi Takada; Superconducting Sensor Laboratory, 2-1200 Muzaigakuendai Inzai, Chiba 270-13, Japan |
Аффилиация |
Keiji Tsukada; Superconducting Sensor Laboratory, 2-1200 Muzaigakuendai Inzai, Chiba 270-13, Japan |
Аффилиация |
Akira Adachi; Superconducting Sensor Laboratory, 2-1200 Muzaigakuendai Inzai, Chiba 270-13, Japan |
Выпуск |
4A |