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《Journal of Yanan University(Natural Science Edition)》 2011-01
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Study on Uniformity of Magnetic Field of Helmholtz Coil

YANG Neng-Xun,XUE Lin-Na(College of Physics and Electronic Information,Yan an University,Yan an 716000,China)  
In order to investigate the magnitude,shape and scope of uniform region of space magnetic filed of Helmholtz coil,the magnetic field magnitude of finite element of axial section of Helmholtz coil is measured using FD-HM-I type Helmholtz magnetic field determinator and sensor probe of mili-teslameter with well-appointed high sensitivity equipped by FD-HM-I type Helmholtz magnetic field determinator,coordinate system is established with the center point of two-coil center link as origin of coordinate,the magnitude,shape and scope of uniform region of space magnetic filed of Helmholtz coil is obtained according to the symmetry of the coil.As the size of sensor probe of mili-teslameter is smaller,distinguishability is higher,therefore,the sensor is applied for measuring low intensity magnetic field in physics experiments,and there is higher accuracy,less errors using it to measure magnetic fields.
【CateGory Index】: O441
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