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  2. Gas meter - Wikipedia

    en.wikipedia.org/wiki/Gas_meter

    Orifice meters are a type of differential meter, all of which infer the rate of gas flow by measuring the pressure difference across a deliberately designed and installed flow disturbance. The gas static pressure, density, viscosity, and temperature must be measured or known in addition to the differential pressure for the meter to accurately ...

  3. Gas pycnometer - Wikipedia

    en.wikipedia.org/wiki/Gas_pycnometer

    A gas pycnometer is a laboratory device used for measuring the density—or, more accurately, the volume—of solids, be they regularly shaped, porous or non-porous, monolithic, powdered, granular or in some way comminuted, employing some method of gas displacement and the volume:pressure relationship known as Boyle's law. A gas pycnometer is ...

  4. Pressure measurement - Wikipedia

    en.wikipedia.org/wiki/Pressure_measurement

    The squeeze-film pressure sensor is a type of MEMS resonant pressure sensor that operates by a thin membrane that compresses a thin film of gas at high frequency. Since the compressibility and stiffness of the gas film are pressure dependent, the resonance frequency of the squeeze-film pressure sensor is used as a measure of the gas pressure.

  5. Gas holder - Wikipedia

    en.wikipedia.org/wiki/Gas_holder

    A gas holder or gasholder, also known as a gasometer, is a large container in which natural gas or town gas (coal gas or formerly also water gas) is stored near atmospheric pressure at ambient temperatures. The volume of the container follows the quantity of stored gas, with pressure coming from the weight of a movable cap.

  6. Gas volume corrector - Wikipedia

    en.wikipedia.org/wiki/Gas_volume_corrector

    Gas volume corrector - device for calculating, summing and determining increments of gas volume, measured by gas meter if it were operating base conditions. For this purpose, uses as input the gas volume, measured by the gas meter and other parameters such as: gas pressure and temperature. It is used for the settlement of trade wholesale gas.

  7. Flow measurement - Wikipedia

    en.wikipedia.org/wiki/Flow_measurement

    The Dall tube is a shortened version of a Venturi meter, with a lower pressure drop than an orifice plate. As with these flowmeters the flow rate in a Dall tube is determined by measuring the pressure drop caused by restriction in the conduit. The pressure differential is typically measured using diaphragm pressure transducers with digital readout.

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