NOVEL DESIGN AND OPERATION OF THIN FILM HIGH TC MAGNETOMETER

被引：0

作者：

Gershenson, Meir ^{[1
]}

Williams, Randy ^{[1
]}

机构：

[1] US Navy, Coastal Syst Stn, Panama City, FL 32407 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

Ceramic materials - Copper oxides - High temperature superconductors - Magnetic fields - Superconducting films;

D O I：

10.1109/77.233952

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：

The concept of a magnetometer based on the nonlinear magnetic properties of a High Tc superconductor thin film was developed and tested. A novel detection method which allows microwave operation was tested. The superconductor, driven into the nonlinear regions by applying an amplitude modulated magnetic field, generates a low frequency field at the modulation frequency commensurate with the externally applied fields. The particular advantage of this system versus the SQUID alternative is the minimal processing of the superconducting material necessary to construct such a device. An electronic system which allows operation up to 2.4GHz was tested with a YBCO thin film sample in a magnetometer configuration. Noise density of 15nT (1/2) was measured

引用

页码：2454 / 2456

页数：3

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