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| Analysis of External Electromagnetic Field Intensity of Finite Length Solenoid Using MATLAB |
| GAO Wei-ping1,DONG Wei1,FU Hong-bo2,ZHAO Ming-li3 |
1. College of Optoelectronic Engineering, Xi��an Technological University��Xi��an 710021, Shanxi, China
2. Wuxi longlin Lighting Equipment Co., Ltd., Wuxi 214045, Jiangsu, China
3. Shanxi History Museum��Xi��an 710061,Shanxi, China�� |
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Abstract According to the law of Biot-Mr Dyer and the ampere loop theorem, integral form of the magnetic induction intensity expression is deduced. Calculation results are obtained using MATLAB symbolic integral, and three-dimensional curve of the magnetic field distribution is drawn. It is concluded that the finite length solenoid external electromagnetic field distribution is basically stable.It is strong near the hub and decreases away from the axis.
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Received: 22 September 2013
Published: 24 February 2014
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2014, Vol. 32 
