A 19-CHANNEL DC SQUID MAGNETOMETER SYSTEM FOR BRAIN RESEARCH

被引：3

作者：

FLOKSTRA, J

TERBRAKE, HJM

HOUWMAN, EP

VELDHUIS, D

JASZCZUK, W

CASPARI, M

ROGALLA, H

MARTINEZ, A

RILLO, C

机构：

[1] UNIV ZARAGOZA,ETSII,E-50015 ZARAGOZA,SPAIN

[2] UNIV ZARAGOZA,CSIC,ICMA,SERV INSTRUMENTAC CIENT,E-50009 ZARAGOZA,SPAIN

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 1991年 / 27卷 / 1-3期

关键词：

D O I：

10.1016/0924-4247(91)87087-J

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A 19-channel d.c. SQUID magnetometer system for neuromagnetic investigations is under constuction. The first-order gradiometers for sensing the signal are placed in a hexagonal configuration. D.c. SQUIDs based on niobium/aluminium technology have been developed, leading to a field sensitivity of about 5 fT/square-root Hz. SQUID read-out is realized with a resonant transformer circuit at 100 kHz. The multichannel control and detection electronics are compactly built.

引用

页码：781 / 785

页数：5

共 9 条

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