【摘 要】
：
We propose an in-situ method to calibrate the coil constants of the optical atomic magnetometer.This method is based on measuring the Larmor precession of spin
【机 构】
：
School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing 1001
论文部分内容阅读
We propose an in-situ method to calibrate the coil constants of the optical atomic magnetometer.This method is based on measuring the Larmor precession of spin polarized alkali metal atoms and has been demonstrated on a K-Rb hybrid atomic magnetometer.Oscillation fields of different frequencies are swept on the transverse coil.By extracting the resonance frequency through phase-frequency analysis of electron spin projection,the coil constants are calibrated to be 323.1±0.28nT/mA,108±0.04nT/Ma,and 185.8± 1.03nT/mA along the X,Y,and Z directions,respectively.
其他文献
该研究选用全国冬播麦区48个主栽品种和优良品系,选择有代表性的15个地区进行联合多点试验,收集各地区的主要环境因子资料,考察了粒色、千粒重、容重、角质率、度、出粉率、
本研究考察了6311S本身的农艺性状、育性；对6311S与10个恢复系配成的10个F_1考种以评价6311S的应用价值(其中4个组合有两年考种资料，其余6个只有一年考种资料)；探索了将6311S转育为遗传基础相近的矮败型核质互作雄性不育系的育种技术途径。结果表明： 1．6311S生育期82天；南京正季作不育系主穗达270粒；南繁收获的6311S种子的出糙率达79.2％、精米率达70.5％；整
Social network analysis (SNA) is among the hottest topics of current research. Most measurements of SNA methods are certainty oriented, while in reality, the un
Automatic detection of a designated building area(DBA)is a research hotspot in the field of target detection using remote sensing images.Target detection is urg
Among redundant arrays of independent disks (RAID)-6 codes, maximum distance separable (MDS) based RAID-6 codes are popular because they have the optimal storag
Image classification is an essential task in content-based image retrieval.However,due to the semantic gap between low-level visual features and high-level sema
Vibration characteristic plays an important role in vibrothermography,which directly affects the heating during the test.In this work,involving all the contacts
An idea of the surface plasmon resonance (SPR) has been utilized for the design of highly sensitive sensors based on the wagon-wheel fiber technology.Such senso
In this paper,the localized surface plasmon resonance (LSPR) peak of Ag-Fe and Au-Fe alloy nanoparticles for the triangular prism is calculated by using the dis
Exploring and understanding the ocean is an important field of scientific study.Acquiring accurate and high-resolution temperature and depth profiles of the oce