WANG Wen-lin1, CHENG Jia2, LI Dong-sheng1, et al. Design on a new type of electric drive piston standard device for critical diaphragm gas meters[J]. 2011, 30(10): 106-108+111.
WANG Wen-lin1, CHENG Jia2, LI Dong-sheng1, et al. Design on a new type of electric drive piston standard device for critical diaphragm gas meters[J]. 2011, 30(10): 106-108+111. DOI: 10.13873/j.1000-97872011.10.008.
The new electric drive piston gas flow standard device for critical family diaphragm gas meters is researched and developed.The structure of the electric drive piston gas flow standard device is described.The mathematical models of Joint Inspection of 4 diaphragm gas meters is derived according to the structure of standard device and verification regulation of diaphragm gas meters.The calibration system for family diaphragm gas meter based on LabVIEW and PLC is designed.It’s proved that repeatability of the new electric drive piston gas flow standard device is better than 0.05 % by the testing of device repeatability.Compared with bell gas flow standard device in critical G4-type diaphragm gas meter