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《Transactions of China Electrotechnical Society》 2004-09
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Corona Discharge of Magnet Enhancement and Its Effect on Charging Behavior of Particles

Lin Shanshan Sheng Lianxi li Mingfei Sun Yinghao Xu Dexuan(Northeast Normal University Changchun 130024 China)  
The characteristics of the magnet enhancement corona discharges and their functions for charging particles are introduced. The experimental results demonstrated that the magnet field could obviously increase the discharge current and enhance the particle density in corona discharges. The deflection of free electrons between the discharge and collection electrodes was measured. Therefore we can deduce that both the energy and the concentration of free electrons and ions are increased in the magnet enhancement corona discharges. Comparing with the uniform magnet field, the non-uniform magnet field formed by the permanent magnet nearby the discharge electrodes can more effectively intensify corona discharges was developed. An aerosol charger of the magnet enhancement corona discharges with permanent magnet. The charging current was increased by 25% in a magnet field of 0.02T.
【Fund】: 国家自然科学基金资助项目(50277004)
【CateGory Index】: X701.2
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