TITLE

Parameter Modeling Analysis and Experimental Verification on Magnetic Shielding Cylinder of All-Optical Atomic Spin Magnetometer

AUTHOR(S)
Zhang, Hong; Zou, Sheng; Chen, Xi-Yuan; Quan, Wei
PUB. DATE
May 2015
SOURCE
Journal of Sensors;5/21/2015, Vol. 2015, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The ultrahigh sensitivity atomic spin magnetometer as the magnetic measurement sensor has received much concern. The performance of the magnetic shielding cylinder is one of the key factors constraining the atomic spin magnetometer’s sensitivity. In order to effectively improve the performances of the magnetic shielding, the parameter optimization models of the magnetic shielding cylinder were established in this paper. Under the condition of changing only one parameter while the others keeping constant, the effects of various parameters influencing the axial shielding coefficient were comprehensively analyzed, and the results showed that the smaller the innermost length, the innermost radius, and the radial spacing were, and the greater the axial spacing was, the better the shielding performance could be obtained. According to these results and the actual needs, the magnetic shielding cylinder was optimally designed, and then the shielding effects were simulated via the software Ansoft. The simulation results showed that the optimized magnetic shielding cylinder had the advantages of small size, high shielding performance, and lager uniformity than that of the nonoptimized one. The actual measurement results showed that the residual magnetism in the optimized magnetic shielding cylinder was below 0.1 nT, which was 2~4 times lower than the nonoptimized one.
ACCESSION #
109206526

 

Related Articles

  • The Influence of Magnetic Shielding on Selectivity of a Hall Sensor based Protection. Miedzinski, B.; Dzierzanowski, W.; Habrych, M.; Okraszewski, Z. // Electronics & Electrical Engineering;2009, Issue 91, p89 

    A possibility of improvement of performance of the newly developed ground fault protection using a Hall sensor as measuring element is discussed. The considerations have been carried out for the new balance transformer structure with magnetic shielding on the basis of results of both analytical...

  • A new magnetic shield using C-shaped magnetic materials. Haga, A.; Nasuno, H.; Kikuchi, S. // Journal of Applied Physics;11/15/1988, Vol. 64 Issue 10, p6017 

    Presents a study which examined the structure and characteristics of a magnetic shielding device. Description of the device; Experimental results; Analysis of the shielding effect; Conclusion.

  • Optimal three-layer cylindrical magnetic shield sets for scientific applications. Burt, E. A.; Ekstrom, C. R. // Review of Scientific Instruments;Jul2002, Vol. 73 Issue 7, p2699 

    We present results from modeling axial shielding effectiveness for various configurations of three-layer cylindrical magnetic shield sets. In particular, we examine the effect on shielding of spacing between shield layers, end cap geometry, and end cap holes as well as gaps between mating...

  • Efficient three-dimensional numerical magnetic shield model. Oti, John // Journal of Applied Physics;5/15/2002 Part 1, 2 & 3, Vol. 91 Issue 10, p8290 

    We describe an accurate, flexible, and efficient three-dimensional magnetic shield model that is suitable for use within generic micromagnetic models. The model accounts for both shield saturation effects (to first order) and fringing field edge effects due to the finite size of the shields. The...

  • Hysteresis prediction inside magnetic shields and application. Morić, Igor; De Graeve, Charles-Marie; Grosjean, Olivier; Laurent, Philippe // Review of Scientific Instruments;2014, Vol. 85 Issue 7, p1 

    We have developed a simple model that is able to describe and predict hysteresis behavior inside Mumetal magnetic shields, when the shields are submitted to ultra-low frequency (<0.01 Hz) magnetic perturbations with amplitudes lower than 60μT. This predictive model has been implemented in a...

  • Calculations of magnetic properties. II. Electron-correlated nuclear shielding constants for nine small molecules. Cybulski, Sl\awomir M.; Bishop, David M. // Journal of Chemical Physics;5/15/1993, Vol. 98 Issue 10, p8057 

    Calculations of the nuclear magnetic shielding constants at the self-consistent-field (SCF) and second-order Mo\ller–Plesset (MP2) levels of theory are reported for H2, N2, F2, HF, CO, HCN, HNC, H2O, and NH3. The reliability of the calculations is verified by the high degree of...

  • SHIELDED FROM REALITY. RENEGARDO, EMILIO // Microwaves & RF;Jul2013, Vol. 52 Issue 7, p18 

    A letter to the editor is presented in response to an article in the "RF Essentials" section in the June 2013 issue, which discusses electromagnetic (EM) shielding along with product lines information from suppliers and websites of each company.

  • EMI shielding from a foam gasket.  // Electronics Weekly;3/26/2003, Issue 2092, p24 

    Features Soft-Shield 4500, a conductive z-axis electromagnetic interference (EMI) shielding foam gasket, from Chomerics. Description of the product.

  • Measurement of the Shielding Effectiveness of Conducting Enclosures with the Image Theory. Paoletti, U.; Garbe, H.; John, W. // Advances in Radio Science;2005, Vol. 3, p137 

    Two simple techniques for the measurement of the shielding efficiency for the electric field of a symmetric enclosure are presented y. They allow measurements in the symmetry plane of the enclosure without disturbances b the cables. Measurements in near and far field regions are possible....

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics