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《Transducer and Microsystem Technologies》 2011-09
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Research on method of natural gas energy measurement based on network platform

WU Huan-fen1,2,CHENG Jia2,LI Dong-sheng1,Lü Ji-fan1,2(1.School of Metrology and Measurement Engineering,China Jiliang University,Hangzhou 310018,China; 2.Institute of Metrology of Zhejiang Province,Hangzhou 310013,China)  
To measure natural gas energy more rationally,the method of natural gas energy measurement is studied.The working principle is introduced.Natural gas energy measurement system software and hardware are designed according to energy measurement requirement.Natural gas energy measurement system is established based on natural gas internal fiber-optic network.The volume flow,component data,pressure,temperature and other parameters are read out simultaneously in this system.Natural gas energy is calculated through the internal core software according to the method of natural gas energy measurement.The system of analysis and calculation of uncertainty,the results show that the uncertainty of energy measurement could be reached 1 %(k=2),when the measurement process is kept in good control.The result of test shows the system is easy to operate,and can load the volume flow,component data,pressure,temperature and other parameters steadily.Compared with software FLOCALC,the relative error is less than 0.1 %.
【Fund】: 浙江省科技厅重大科技专项计划资助项目(2009C11008)
【CateGory Index】: TE863.1
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