A positive displacement meter is a type of flow meter that requires fluid to mechanically displace components in the meter in order for flow measurement...

Positive displacement may refer to: Positive displacement pump Positive displacement meter Positive displacement pipette This disambiguation page lists...

Anemometer Ultrasonic flow meter Mass flow meter (Coriolis force). Flow measurement methods other than positive-displacement flowmeters rely on forces...

electrical pulses for a flow computer. Diaphragm gas meters are positive displacement meters. Rotary meters are highly machined precision instruments capable...

engine cycle Displacement (fluid), an object immersed in a fluid pushes the fluid out of the way Positive displacement meter, a pump or flow meter which processes...

safety. A positive-displacement pump can be further classified according to the mechanism used to move the fluid: Rotary-type positive displacement: internal...

Rotary positive displacement meters have a turndown ratio of between 10:1 and 80:1, depending on the manufacturer and the application. Diaphragm meters are...

submetering). Displacement meters are commonly referred to as Positive Displacement, or "PD" meters. Two common types are oscillating piston meters and nutating...

illustrated and discussed below: A positive displacement compressor is a system that compresses the air by the displacement of a mechanical linkage reducing...

hydrocarbons, positive displacement meters and turbine meters have been preferred. For gas metering, gas orifice meters and ultrasonic flow meters are most...

original length L of the line element or fibers (in meters per meter). The normal strain is positive if the material fibers are stretched and negative if...

of air through a meter, while monitoring the gas meter's register, index, or internal displacement. The prover determines the meter factor, which is the...

Lagrangian drifter) or in a resting frame. Lagrangian current meters measure the displacement of an oceanographic drifter, an unmoored buoy or a non-anchored...

measured in farads per meter (F/m or A2·s4·kg−1·m−3). The displacement field D is measured in units of coulombs per square meter (C/m2), while the electric...

used as master meters include turbine meters, positive displacement meters, venturi meters, and Coriolis meters. In the U.S., master meters are often calibrated...

20Z-Meter, 28Z-Meter, 31Z-Meter, 32Z-Meter, 36Z-Meter, 38Z-Meter, 38Z-5-Meter, 39Z-Meter, 40Z-Meter, 42Z-Meter, 47Z-Meter, 51Z-5-Meter, 56Z-Meter, 63Z-Meter...

are used, including ceramic ball bearings. Positive displacement (PD) flowmeters are highly accurate meters that are widely used for custody transfer of...

momentum space Position operator Position space Positive displacement meter Positive energy theorem Positive pressure Positron Positron emission Positron...

and b {\displaystyle b} are arbitrary constants representing time and displacement offsets respectively. The units of the amplitude depend on the type of...

to deliver a precise total amount. Many metering pumps are piston-driven. Piston pumps are positive displacement pumps which can be designed to pump at...

The Roots blower is a positive displacement lobe pump which operates by pumping a fluid with a pair of meshing lobes resembling a set of stretched gears...

health risks. In addition, workers in some industries may experience job displacement and unemployment as a result of disruptive developments in labor markets...

000 kN·m², the displacement would be approximately 13 cm. Note that for the rotation θ {\displaystyle \theta } the units are meters divided by meters (or any...

rest at that point. The SI unit for the electric field is the volt per meter (V/m), which is equal to the newton per coulomb (N/C). The electric field...

is not uniquely defined. A direct reading power factor meter can be made with a moving coil meter of the electrodynamic type, carrying two perpendicular...

mass. That is, each time the mass passes through a minimum or maximum displacement, the mass experiences a discontinuous acceleration, and the jerk contains...

principle might be, for instance, a spherical shell with a diameter of five meters and the mass of Jupiter. A person at its center will travel forward in time...

mathematically by P; in SI units, it is expressed in coulombs per square meter (C/m2). Polarization density also describes how a material responds to an...

piston (movable inner part) which directly displaces the liquid. Positive displacement pipette The chuck which will be used to move the plunger An early...

Anderson Injector - Anderson Injectors are positive displacement injectors that operate on either a flow metered electric pump or water pressure depending...