电工技术学报2024,Vol.39Issue(23):7291-7308,18.DOI:10.19595/j.cnki.1000-6753.tces.232009
脉冲强磁场磁感应强度测量技术研究进展
Progress of Magnetic Induction Intensity Measurement Techniques in the Pulsed High Magnetic Field
摘要
Abstract
The pulsed high magnetic field is one of the essential tools in modern scientific research.Accurate measurement of the magnetic induction intensity in the pulsed high magnetic field plays a pivotal role in the development of pulsed high magnetic field technology and related scientific studies.However,the pulsed high magnetic field has characteristics such as high field strength,short durations,and limited measurement volumes,which pose significant challenges for achieving accurate measurement of the magnetic induction intensity in the pulsed high magnetic field. This work introduced recent progress of various magnetic induction intensity measurement techniques in the pulsed high magnetic field,including the induction coil method,magneto-optical rotation method,Hall effect method,magnetoresistance effect method,and magnetic resonance method.Their sensing characteristics,measurement system structures,and unique challenges and solutions in the pulsed high magnetic field were summarized.The induction coil method is one of the most commonly used measurement techniques.In recent years,additional attention has been given to issues such as insulation protection,sensor reinforcement,and frequency response characteristics.The magneto-optical rotation method is widely used in the destructive pulsed magnetic field.However,there is currently a lack of magneto-optical materials that are both less prone to saturation in the high field and have large Verdet constants.Measurement methods based on the Hall effect or magnetoresistance effect have an advantage in that their sensors have a small volume,making it easy to measure the magnetic field near physical experiment samples or the spatial distribution of the target magnetic field.Various solutions have been developed to address the loop effect issues that arise from the coupling between the measurement circuit and the pulsed magnetic field.Magnetic resonance methods are currently the most accurate techniques for measuring and calibrating the magnetic field.Various principles of magnetic resonance phenomena,including nuclear magnetic resonance,electron spin resonance,and cyclotron resonance,are developed and can be employed to measure the pulsed high magnetic field. Furthermore,we also presented calibration methods for the magnetic induction intensity measurement in the pulsed high magnetic field,such as the standard probe method and standard magnetic field method.The standard probe method currently mainly utilizes known measurement results such as the magnetic field phase transition effect of MnF2 single crystal and the quantum oscillation effect of pure copper metal as the standard probe.The standard magnetic field method is mainly used for calibrating probes with good linearity such as the induction coil,and can evaluate the frequency response characteristics of the probes. Finally,a summary and outlook of the development of magnetic induction intensity measurement techniques in the pulsed high magnetic field were given.关键词
脉冲强磁场/磁感应强度测量/磁场标定与校准Key words
Pulsed high magnetic field/magnetic induction intensity measurement/magnetic field calibration分类
信息技术与安全科学引用本文复制引用
魏文琦,张绍哲,谢剑峰,韩小涛..脉冲强磁场磁感应强度测量技术研究进展[J].电工技术学报,2024,39(23):7291-7308,18.基金项目
国家自然科学基金资助项目(U21A20458,52107152和51821005). (U21A20458,52107152和51821005)