Real-time electronic longitudinal polarizability closed-loop control method in SERF atomic comagnetometer

IF 4.9 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Sensors and Actuators A-physical Pub Date : 2025-06-01 Epub Date: 2025-03-03 DOI:10.1016/j.sna.2025.116383

Zeyi Hu , Lihong Duan , Ze Cai , Hang Gao , Lele Ma , Shuo Huang , Wenfeng Fan , Wei Quan

引用次数: 0

Abstract

The electron spin’s fluctuation in longitudinal polarizability significantly compromises the long-term stability of inertial measurement systems. Here introduces a real-time closed-loop control method for electron spin polarizability, employing magnetic field modulation, and thoroughly analyzes the system’s output responsiveness to changes in electron polarizability. By applying modulated magnetic field, the electron’s longitudinal polarizability information is derived from the output signal. Subsequently, stable control of this polarizability is achieved by adjusting the intensity of the Pump optical power density. Experimental results have validated that this new method significantly improves inertial measurement sensitivity. This method is also suitable for the research of optical pump magnetometer and nuclear magnetic resonance comagnetometer.

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SERF原子磁强计纵向极化率实时电子闭环控制方法

电子自旋纵向极化率的波动严重影响惯性测量系统的长期稳定性。本文介绍了一种利用磁场调制的电子自旋极化率实时闭环控制方法，并深入分析了系统输出对电子极化率变化的响应性。通过施加调制磁场，从输出信号中导出电子的纵向极化率信息。随后，通过调节泵浦光功率密度的强度来实现对极化率的稳定控制。实验结果表明，该方法显著提高了惯性测量的灵敏度。该方法也适用于光泵磁强计和核磁共振磁强计的研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Sensors and Actuators A-physical 工程技术-工程：电子与电气

CiteScore

8.10

自引率

6.50%

发文量

630

审稿时长

49 days

期刊介绍： Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas: • Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results. • Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon. • Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays. • Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers. Etc...