【作者】 廉育英； 许维刚；

【Author】 ( 1.National Institute of Metrology.Beijing 100013,Professor; 2.Jing-lian Instrument and Meter Plant in Cangzhou HeBei Province, Cangzhou 061000,Senior Engineer)

【机构】 中国计量科学研究院； 河北省沧州市京联仪器仪表厂；

【摘要】 本文提出了一种活塞式液化石油气(LPG)加气机的计量检测装置,它可以将高压下的LPG的体积计量转换成常压下介质为水的体积计量,依此水的体积为标准来确定加气机向机动车所加注的LPG体积之差。在此计量过程中,避免了通常标准金属器检定时,由于LPG气化所带来的难以估算的调差。该装置计量准确。其扩展不确定度为0.1%。而日操作简便。更多还原

【Abstract】 A kind of measuring and testing device of Liquefied Petroleum Gas(LPG) Dispenser with piston is described in this text,which is by measuring the medium water volume at normal air pressure to replace the LPG volume at high air pressure,using the water volume as the criterion compare with the LPG volume that filling in the vehicle by the Liquefied Petroleum Gas Dispenser,and to determine the error.In the course of measurement,the incalculable error that is due to the LPG boill-off is avoided when use the standard measuring instrument to test the volume.The device is very accurate,the expanded uncertainty is 0.1%,and operating is very simple and convenient.更多还原