Zeyi Hu , Lihong Duan , Ze Cai , Hang Gao , Lele Ma , Shuo Huang , Wenfeng Fan , Wei Quan
{"title":"Real-time electronic longitudinal polarizability closed-loop control method in SERF atomic comagnetometer","authors":"Zeyi Hu , Lihong Duan , Ze Cai , Hang Gao , Lele Ma , Shuo Huang , Wenfeng Fan , Wei Quan","doi":"10.1016/j.sna.2025.116383","DOIUrl":null,"url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"387 ","pages":"Article 116383"},"PeriodicalIF":4.1000,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators A-physical","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S092442472500189X","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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.
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...