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Study on Magnetic Field Distribution in Electromagnetic Ingot Casting Mold for Extra Heavy Plate

Journal of Iron and Steel Research International 2012年第S2期19卷 637-642页

作者： XU Chang-jun HU Lin WANG Qi HU Xiao-dong ZHENG Pei-liang LI Dong-xu ZHAO Lian-gang Metallurgical Engineering and Technology Research Center University of Science and Technology Liaoning Key Laboratory of Chemical Metallurgy Engineering

The dual-frequency electromagnetic ingot casting(DFEMIC)method with copper water-cooled ingot mold for extra heavy plate was *** field distribution in ingot mold was measured through the teslameter,the shielding effect of the copper ingot mold was judged,it is less than 37.7%of magnetic flux density when there is no ingot *** average shielding the magnetic field proportion of copper ingot mold reduced to 54.9%after loading '「' type the magnetic yoke and adjusting its *** electromagnetic power can increase the magnetic field strength. Using the slit combination ingot mold could help increasing magnetic flux density in ingot *** structure outside ingot mold also have interference on magnetic field distribution in ingot mold,Therefore,it is important to paid more attention to electromagnetic shielding and the uniform symmetry of system structure.

关键词： extra heavy plate dual frequency electromagnetic field magnetic yoke power

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Compact Two Shorting Pin Loaded ETMA

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Computer Technology and Application 2013年第4期4卷 185-189页

作者： Kamil Yavuz Kapusuz Birkan Dagdeviren Sultan Can Electrical and Electronics Engineering Department Faculty of Engineering Atilim University Ankara 06836 Turkey Electrical and Electronics Engineering Department Faculty of Engineering Ankara University Ankara 06100 Turkey

In this study ETMA （Equilateral Triangular Microstrip Antennas） are designed to form dual frequency by inserting two shorting pins. Microstrip patch antennas＇ resonant frequencies with two shorting pins are represented in this study by not only considering the theoretical results but also considering the both simulated and experimental results. For each geometry, positions of shorting pins are varied and effects of these variations are analyzed. The presented patch antennas in literature which have the same shape with shorting pin and without shorting pin are compared and results are presented. The methods in literature presented for estimating the resonant frequency depends on analytical methods which are originated from curve fitting. The results of this study will be the basement of the latter studies that predict the resonant frequencies of mentioned antennas before producing the antenna so that the engineers handle the problem by saving the time and estimating the frequency before production.

关键词： Shorting pin dual frequency equilateral triangular patch antenna.

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Research on Enhancement Scheme of GPS Occultation Open-loop Tracking Strategy

Research on Enhancement Scheme of GPS Occultation Open-loop ...

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第十一届中国卫星导航年会

作者： Lu Zhang Xiaojiang Yang Qijia Dong Juanjuan Dong GenJin Xianyang Liu Yan Cheng Lijing Pan Space Star Technology Co. Ltd

GPS radio occultation detection technology is a new application technology, mainly using GPS for edge detection of the atmosphere and ionosphere. In the low troposphere, it is difficult to track the l

关键词： GPS occultation open loop dual frequency atmosphere capture and tracking

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