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《Boiler Technology》 2005-03
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Study on Capacitance Transducers for Concentration Measurement of Pulverized Coal in Boiler

HAN Li, GUI Ke-ting, XU Zhi-gaoDepartment of Power Engineering, Southeast University, Nanjing 210096, China  
ANSYS is used to analyze the sensitivity distribution of sensing field in this paper. A configuration of capacitance electrods which provides a high and homogeneous capacitance sensitivity over the pipe cross section is constructed. A measuring circuit which has low baseline drift, high and stable sensitivity, immunity to stray capacitances and immunity to external electrical interface is designed. Through the test, a perfect performance measuring system for the phase concentration of gas-solid two phases flows is achieved.
【Fund】: 国家自然科学基金项目资助(50176009)
【CateGory Index】: TK31
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