Object surveillance with radio-frequency atomic magnetometers

被引：13

作者：

Bevington, P. ^{[1
,2
]}

Gartman, R. ^{[1
]}

Botelho, D. J. ^{[3
]}

Crawford, R. ^{[3
]}

Packer, M. ^{[3
]}

Fromhold, T. M. ^{[3
]}

Chalupczak, W. ^{[1
]}

机构：

[1] Natl Phys Lab, Hampton Rd, Teddington TW11 0LW, Middx, England

[2] Univ Strathclyde, Dept Phys, Glasgow C4 0NG, Lanark, Scotland

[3] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2020年 / 91卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

SPIN; HE-3;

D O I：

10.1063/1.5145251

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The capabilities of a radio-frequency atomic magnetometer for object detection based on magnetic induction tomography are explored. The determination of object orientation is demonstrated by utilizing the measurement geometry. The self-compensation configuration of the atomic magnetometer is implemented to address the issue of saturation of the sensor response by the radio-frequency primary field that generates the object signature. Three methods of "covert" detection are investigated as a testbed for exploring the functionalities of this sensor, where (1) the operational frequency of the sensor is continuously changed, (2) the primary field has non-monochromatic frequency distribution, and (3) the sensor operates in the so-called spin maser mode. The results of the measurements are also discussed in terms of possible magnetic field communication.

引用

页数：8

共 27 条

[1] Active sonar detection in shallow water using the Page Test [J].