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  2. Flow measurement - Wikipedia

    en.wikipedia.org/wiki/Flow_measurement

    A rotameter is an example of a variable area meter, where a weighted "float" rises in a tapered tube as the flow rate increases; the float stops rising when area between float and tube is large enough that the weight of the float is balanced by the drag of fluid flow. A kind of rotameter used for medical gases is the Thorpe tube flowmeter ...

  3. Thorpe tube flowmeter - Wikipedia

    en.wikipedia.org/wiki/Thorpe_Tube_Flowmeter

    A Thorpe tube flowmeter, a type of variable-area flowmeter, or a rotameter, is an instrument used to directly measure the flow rate of a gas in medical instruments. It consists of a connection to a gas source, a needle valve opened and closed by turning an attached dial for control of flow rate, a float resting in a clear tapered tube, and an ...

  4. Rotameter - Wikipedia

    en.wikipedia.org/wiki/Rotameter

    A rotameter is a device that measures the volumetric flow rate of fluid in a closed tube. [ 1 ] It belongs to a class of meters called variable-area flowmeters , which measure flow rate by allowing the cross-sectional area the fluid travels through to vary, causing a measurable effect.

  5. Brooks Instrument - Wikipedia

    en.wikipedia.org/wiki/Brooks_Instrument

    Brooks Instrument is a manufacturer of flow control and measurement equipment based in Hatfield, PA.It was a division of Emerson (NYSE:EMR) until December 31, 2007 when it was sold to American Industrial Partners Capital Fund IV (“AIP”) for approximately $100 million in cash.

  6. Matheson (compressed gas & equipment) - Wikipedia

    en.wikipedia.org/wiki/Matheson_(compressed_gas...

    Matheson Tri-Gas, Inc. produces industrial, medical, and specialty gases, and associated gas handling equipment, in North America.MATHESON offers semiconductor, medical, welding, atmospheric gases, rare gases delivered via pipelines, onsite generators, bulk tanks, and in gas cylinders to customers using gases in their labs, semiconductor fabs, hospitals, chemical plants, manufacturing and many ...

  7. Positive displacement meter - Wikipedia

    en.wikipedia.org/wiki/Positive_displacement_meter

    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 (PD) flow meters measure the volumetric flow rate of a moving fluid or gas by dividing the media into fixed, metered volumes (finite increments or volumes of the fluid).

  8. Diargon - Wikipedia

    en.wikipedia.org/wiki/Diargon

    Diargon or the argon dimer is a molecule containing two argon atoms. Normally, this is only very weakly bound together by van der Waals forces (a van der Waals molecule ). However, in an excited state , or ionised state , the two atoms can be more tightly bound together, with significant spectral features.

  9. Time projection chamber - Wikipedia

    en.wikipedia.org/wiki/Time_projection_chamber

    Liquid argon is around one thousand times denser than the gas used in Nygren's TPC design, which increases the likelihood of a particle interacting in a detector by a factor of around one thousand. This feature is particularly useful in neutrino physics, where neutrino– nucleon interaction cross sections are small.

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