| Bell-Bloom型SERF原子磁力仪综述 |
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| 引用本文： | 王言章,张雪,秦佳男,陈晨. Bell-Bloom型SERF原子磁力仪综述[J]. 仪器仪表学报, 2016, 37(12): 2648-2656 |
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| 作者姓名： | 王言章 张雪 秦佳男 陈晨 |
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| 作者单位： | 1.吉林大学仪器科学与电气工程学院长春130061；2.吉林大学 地球信息探测仪器教育部重点实验室长春130061,1.吉林大学仪器科学与电气工程学院长春130061；2.吉林大学 地球信息探测仪器教育部重点实验室长春130061,1.吉林大学仪器科学与电气工程学院长春130061；2.吉林大学 地球信息探测仪器教育部重点实验室长春130061,1.吉林大学仪器科学与电气工程学院长春130061；2.吉林大学 地球信息探测仪器教育部重点实验室长春130061 |
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| 基金项目： | 吉林省科技厅项目(20160519023JH, 20140203015GX)、国家自然科学基金(61403160)项目资助 |
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| 摘 要： | 弱磁检测技术可应用于地球物理探测、医学、军事等诸多领域。随着弱磁检测技术的不断提升,磁力仪的发展十分迅猛。近些年,无自旋交换弛豫原子磁力仪超越了超导量子干涉磁力仪成为目前世界上最灵敏的磁强计。首先介绍了无自旋交换弛豫原子磁力仪超高灵敏度的根本原因-无自旋交换弛豫现象,以及Bell-Bloom型无自旋交换弛豫原子磁力仪机理;接着给出了国内外最常用的Bell-Bloom型无自旋交换弛豫原子磁力仪的装置结构,并对其各组成部分加以详细描述分析;根据原子磁力仪的不同工作模式,归纳出3种系统设计方案并对其优缺点和适用场合进行对比;最后,对其灵敏度、响应带宽和实用集成化三方面进行论述,指出Bell-Bloom型无自旋交换弛豫原子磁力仪具有广泛应用前景。
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| 关 键 词： | 弱磁场检测；Bell Bloom； 无自旋交换弛豫现象；原子磁力仪；磁共振线宽 |
Review of Bell Bloom spin exchange relaxation free atomic magnetometer |
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| Affiliation: | 1. College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130061, China; 2. Key Laboratory for Geophysical Instrumentation of Ministry of Education, Jilin University, Changchun 130061, China,1. College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130061, China; 2. Key Laboratory for Geophysical Instrumentation of Ministry of Education, Jilin University, Changchun 130061, China,1. College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130061, China; 2. Key Laboratory for Geophysical Instrumentation of Ministry of Education, Jilin University, Changchun 130061, China and 1. College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130061, China; 2. Key Laboratory for Geophysical Instrumentation of Ministry of Education, Jilin University, Changchun 130061, China |
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| Abstract: | The weak magnetic field detection techniquecanbe applied in many areas, such as geophysical exploration, medical treatment, military affairs and etc.Asthe weak magnetic field detection technique is enhancing, the magnetometer develops rapidly. Recent years, the spin exchange relaxation free atomic magnetometer has surpassed the superconductorquantum interference magnetometer and become the most sensitive detector in the world today. Firstly, this paper introduces the spin exchange relaxation free regime, which is the basic reason of why the spin exchange relaxation free atomic magnetometer hasultrahigh sensitivity, and introduces the operation principle of the Bell Bloom spin exchange relaxation free atomic magnetometer. Then, this paper gives the structures of the Bell Bloom spin exchange relaxation free atomic magnetometerscommonly used both in China and abroad, and describes and analyzes their composition parts in details. Accordingto different working modes of atomic magnetometers, three types of system designschemes are summarized, and their advantages, disadvantages and suitable application occasions are compared with each other. Finally, the three aspects of the sensitivity, response bandwidth and practical integration of the atomic magnetometers are discussed,and it is pointed out that the Bell Bloom spin exchange relaxation free atomic magnetometer has broadapplication prospects. |
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| Keywords: | weak magnetic fielddetection Bell Bloom spin exchange relaxation free regime atomic magnetometer magnetic resonance linewidth |
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