XUAN Fang-li, MAO Qian-min, LIU Zhi-hui. Wireless gas meter with temperature and pressure compensation[J]. 2012, 31(2): 131-133. DOI: 10.13873/j.1000-97872012.02.018.
The volume of gas changes with the temperature and pressure
in order to accurately measure the volume of gas under standard conditions
a design scheme of low-power pressure and temperature compensated gas meter based on MSP430 is proposed.The design of software and hardware is introduced.By temperature and pressure integrating sensor
temperature and pressure signal are collected
the gas meter calculate temperature and pressure compensation and converted gas volume flow under working conditions into volume flow under standard conditions.Detected data is sent to the management computer through wireless communication module.Through experiment and theoretical calculation
the meter can achieve the volume temperature and pressure correction of gas and has low power performance.