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  2. Rotameter - Wikipedia

    en.wikipedia.org/wiki/Rotameter

    A higher volumetric flow rate through a given area increases flow speed and drag force, so the float will be pushed upwards. However, as the inside of the rotameter is cone shaped (widens), the area around the float through which the medium flows increases, the flow speed and drag force decrease until there is mechanical equilibrium with the ...

  3. Integrator - Wikipedia

    en.wikipedia.org/wiki/Integrator

    Mechanisms such as the ball-and-disk integrator were used both for computation in differential analysers and as components of instruments such as naval gun directors, flow totalizers and others. A planimeter is a mechanical device used for calculating the definite integral of a curve given in graphical form, or more generally finding the area ...

  4. Flow measurement - Wikipedia

    en.wikipedia.org/wiki/Flow_measurement

    Because they are used for domestic water measurement, piston meters, also known as rotary piston or semi-positive displacement meters, are the most common flow measurement devices in the UK and are used for almost all meter sizes up to and including 40 mm (1 + 1 ⁄ 2 in). The piston meter operates on the principle of a piston rotating within a ...

  5. Water metering - Wikipedia

    en.wikipedia.org/wiki/Water_metering

    A velocity-type meter measures the velocity of flow through a meter of known internal capacity. The speed of the flow can then be converted into a volume of flow to determine the usage. There are several types of meters that measure water flow velocity, including jet meters (single-jet and multi-jet), turbine meters, propeller meters and mag ...

  6. Flow computer - Wikipedia

    en.wikipedia.org/wiki/Flow_computer

    Rotary gas meter with (T) pulse emitter (P) pressure transducer (C) flow computer. A flow computer is an electronic computer which implements algorithms using the analog and digital signals received from flow meters, temperature, pressure and density transmitters to which it is connected into volumes at base conditions. They are used for ...

  7. Communities facing air pollution threats worry about EPA ...

    www.aol.com/news/communities-facing-air...

    In the U.S., the biggest polluters are often concentrated in underserved, mostly minority communities.

  8. Category:Flow meters - Wikipedia

    en.wikipedia.org/wiki/Category:Flow_meters

    Pages in category "Flow meters" ... Water metering This page was last edited on 7 January 2018, at 21:41 (UTC). Text is available under the ...

  9. Fed's top banking regulator to step down after Trump takes ...

    www.aol.com/finance/feds-top-banking-regulator...

    The Federal Reserve’s top banking regulator Michael Barr will step down from his position in February, saying that "the risk of a dispute over the position could be a distraction from our mission."

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