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  • Two Technologies
    Notes. Videos. How They Work. What's New. Email to Greyline. Follow Greyline. Back To Main Page. Two Technologies. for Flow Measurement from Outside a Pipe. Doppler and Transit Time are two very popular types of flow meter for non-invasive measurement of flow in full pipes. We tend to confuse
  • Penetrating Pulse Technology
    through the liquid. Depending on the operating mode chosen, the pulse either is reflected back to the transducer or detected by another transducer and the transit time is measured. Together with other parameters about the application the actual level in the vessel is computed. While the same basic
  • Cooling Systems for Electronic Enclosures
    TRANSIT | OIL & GAS | DESALINIZATION. Enclosure Cooling Options. Overview. The Sources of Heat. This white paper discusses four popular options. Unwanted heat, which can cause an enclosure’s. for cooling electronic/electrical equipment housed. internal temperature to exceed the manufacturer’s
  • SOLTEC Recorder Tests Critical Aircraft Winch
    Some of the uses of the TA220-2000 series recorder can range from diagnosing intermittent problems with local city electric transit trolleys, determining wind turbine generator faults to nuclear turbine diagnosis and cooling pipe dynamics and even to military testing involving thermal dynamics
  • How Ultrasonic Flowmeters Work (.pdf)
    discontinuities that can scatter the transmitted signal or seriously attenuate the. reflected signal. Many clamp-on meters simply won’t operate with lined pipes. Those that will. may have an accuracy of ±20% at best. In-line, or wetted, transducers using Doppler-shift or transit-time (also known
  • Flowmeters Benefit From Silicon Advances
    is made of Teflon-PFA. Clamp-On Ultrasonic Meter in Weatherproof Enclosure Model 101WP ultrasonic hybrid flowmeter uses either transit-time or phase-shift mode to measure flows in liquid-filled pipes sized -in. to 360-in. in diameter. Options include a pipewall thickness gauge and single or dual channel
  • Flowmeter Technology and Specifications
    on ultrasonic flowmeters require zero pipe work and never come in contact with the liquid at all. Ultrasonic flowmeters use one of four basic measurement principles. They are: Transit-time Technology. One of the most reliable and time tested measurement principles is Transit-time flow measurement. A typical
  • Introduction to Flow Meters
    to see a larger size. Some technical information on the Ultrasonic Transit-Time Flowmeter. A chart showing the basic Venturi vs. Orifice Pressure loss relationship. Click on the image to see a larger size. A chart showing the effect of Reynolds numbers on Various Flowmeters. Click on the image

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