A Uniform Magnetic Field Produced by Rectangular Coils

Abstract:

To produce a better uniform magnetic field along the direction of light propagation in studying magnetometer, a pair of rectangular coils are used instead of traditional Helmholtz coils. In this work, the magnetic homogeneity in the center of the rectangular coils is calculated and discussed theoretically. We measured the magnetic field distribution along the light propagation direction of the coils in experiment proving that the field has the relative fluctuation less than 1% in the range of 30cm along the direction.

• Periodical: Advanced Materials Research (Volumes 760-762)
• Pages: 1306-1310
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.760-762.1306
• Online since: September 2013
• Authors: Mo Si Hao, Kang Xiang, Qiang Huang, Wei Min Sun, Jun Hai Zhang
• Keywords: Atomic Magnetometer, Magnetic Field Homogeneity, Rectangular Coils

References

[1] D. Budker,M. Romalis, Optical magnetometry, Nature Physical, vol. 3(4), 2007, pp.227-234, doi: 10. 1038/nphys566.

[2] J.S. Seltzer, Developments in Alkali-Metal atomic, New Jersey: Princeton university, (2008).

[3] J.H. Zhang,Q. Liu X.J. Zeng J.X. Li,W.M. Sun, All Optical Cesium Atomic Magnetometer with high sensitivity, Chin. Phys. Lett., vol. 29, 2012, pp.0685011-0685013, doi: 10. 1088/0256-307X/29/6/068501.

DOI: 10.1088/0256-307x/29/6/068501

[4] J.M. Brown S.J. Smullin T.W. Kornack and M.V. Romalis, New Limiton Lorentz- and CPT-Violating Neutron Spin Interactions, Physical Review Letters, vol. 105(15), 2010, 151604. pp.1516041-1516044, doi: 10. 1103/PhysRevLett. 105. 151604.

DOI: 10.1142/9789814327688_0016

[5] T.W. Kornack, A Test of CPT and Lorentz Symmetry Using a K-3He Comagnetometer, New Jersey: Princeon University, (2005).

[6] S.G. Lee C.S. Kang J.W. Chang, A square-loop Helmholtz coil system for the evaluation of a single-layer second-order high-Tc SQUID gradiometer, Physica C: Superconductivity and its Applications, vol. 460-462, 2007, pp.1472-1474.

DOI: 10.1016/j.physc.2007.04.003

[7] P. Kedzia,T. Czechowski,M. Baranowski,J. Jurga,E. Szczesniak, Analysis of Uniformity of Magnetic Field Generated by the Two-Pair Coil System, Magnetic Resonance, 2013, pp.1-2, doi: 10. 1007/s00723-012-0427-5.

DOI: 10.1007/s00723-012-0427-5

[8] I. Sasada,Y. Nakashima, Planar coil system consisting of three coil pairs for producing a uniform magnetic field, American Institute of Physics Inc, vol. 99, 2006, doi: 10. 1063/1. 2165107.

DOI: 10.1063/1.2165107

[9] G. Gregor, Measurements of the magnetic field uniformity in a solenoid multilayer coil, Electrotechnical Society of Slovenia, vol. 74, 2007, pp.303-304.

[10] X.J. Kuang, The spatial magnetic field of square coil, Physics and Engineering, vol. 16, 2006, pp.18-20, 25.