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《Journal of China University of Metrology》 2011-01
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Research of air-tight property detector used in diaphragm style gas meter

JIN Zhong-jun,MAO Qian-min(College of Metrology and Measurement Engineering,China Jiliang University,Hangzhou 310018,China)  
According to the more and more safety problems appeared in the use of fuel gas currently,the necessity and significance of air-tightness detection for the gas meter in daily life were introduced.An air-tight property detector based on the principle of direct pressure with the C8051F350 MCU as the control core was designed.It was controlled in the form of hierarchical by lord vice panel,and was with more flexible in detecting.The pressure was measured by the high accuracy differential pressure transmitter and the 24 bit A/D converter was used to deal with the detection signal,so as to capture and amplify small signals.Through the uncertainty analysis,the experimental data meet the requirements.
【CateGory Index】: TP216
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