A three-axis atomic magnetometer for temperature-dependence measurements of fields in a magnetically shielded environment

被引：43
作者：
Fan, Wenfeng [1 ]
Liu, Gang [1 ]
Li, Rujie [1 ]
Quan, Wei [1 ]
Jiang, Liwei [1 ]
Duan, Lihong [1 ]
机构：
[1] Beihang Univ, Sci & Technol Inertial Lab, Beijing 100191, Peoples R China
来源：
MEASUREMENT SCIENCE AND TECHNOLOGY | 2017年 / 28卷 / 09期
基金：
国家高技术研究发展计划(863计划); 国家重点研发计划; 中国国家自然科学基金;
关键词：
three-axis atomic magnetometer; spin-exchange; relaxation-free magnetometer; magnetic field stability; temperature-dependence; SYSTEMS;
D O I：
10.1088/1361-6501/aa7888
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High performance spin-exchange-relaxation-free (SERF) gyroscopes require stable and homogeneous magnetic fields. These fields are usually sensitive to temperature. In this paper, a three-axis atomic magnetometer to measure the temperature dependence of fields inside the magnetic shields for a SERF gyroscope prototype is constructed and tested. Based on a three-beam configuration, three-axis vector capability is obtained by a cross-modulation scheme of the magnetic field components along orthogonal axes and subsequent demodulation of the relevant probe signals. The relative temperature dependence of magnetic fields inside the prototype shields is measured to be 0.03-0.12 K-1. The results are useful for estimating the necessary precision of temperature control in both a SERF gyroscope and its fundamental physics applications.
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页数：8
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