دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: 1. a meter in which a piston is actuated by the pressure of a measured volume of liquid, and the volume swept by the piston is equal to the volume of the liquid recorded. 2. a meter in which the measuring element measures a volume of liquid by mechanically separating the liquid into discrete quantities of fixed volume and counting the quantities in volume units.

n: in a two-diaphragm. fourchamber diaphragm displacement meter. the link- age that transfers oscillating motion from the flag rods to turn a tangent and crank assembly.

n: a device that measures the amount of fluid moving through a pipe. See orifice meter;positive-displacement meter.

n: a rounded blade on a displacement meter that separates the liquid stream into discrete quantities.

n: the portion of a displacement meter that contains the measuring element.

n: 1. the portion of a displacement meter that moves within the measuring chamber so as to divide the liquid into measured segments as the liquid passes through the meter. 2. the rotating member of a turbine meter, commonly referred to as the rotor.

n: a flowmeter that operates on the principle of the positive displacement of fluid by incorporating the wobbling motion of a piston or a disk. See positive displacement meter.

n: positive-displacement meter. It measures the single-phase volume of gas or fluid by filling and emptying chambers of a specific volume.

n: a mechanical fluid-measuring device that IDeasmes by filling and emptying chambers of a specific volume. The displacement of a fixed volume of fluid may be accomplished by the action of reciprocating or oscillating pis- tons, rotating vanes or buckets, nutating disks, or tanks or other vessels that automatically fill and empty. Also called a volume meter or volumeter.