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  2. Ultrasonic flow meter - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_flow_meter

    Schematic view of a flow sensor. An ultrasonic flow meter is a type of flow meter that measures the velocity of a fluid with ultrasound to calculate volume flow. Using ultrasonic transducers, the flow meter can measure the average velocity along the path of an emitted beam of ultrasound, by averaging the difference in measured transit time between the pulses of ultrasound propagating into and ...

  3. Parshall flume - Wikipedia

    en.wikipedia.org/wiki/Parshall_flume

    ASTM D1941 – 91(2013) Standard Test Method for Open Channel Flow Measurement of Water with the Parshall Flume; ISO 9826:1992 Measurement of Liquid Flow in Open Channels – Parshall and SANIIRI Flumes; JIS B7553-1993 Parshall Flume Type Flowmeters; Bos, Marinus (1989). Discharge Measurement Structures. Third edition revised. Publication 20 ...

  4. Flow measurement - Wikipedia

    en.wikipedia.org/wiki/Flow_measurement

    Ultrasonic flow meter; Mass flow meter (Coriolis force). Flow measurement methods other than positive-displacement flowmeters rely on forces produced by the flowing stream as it overcomes a known constriction, to indirectly calculate flow. Flow may be measured by measuring the velocity of fluid over a known area.

  5. Category:Flow meters - Wikipedia

    en.wikipedia.org/wiki/Category:Flow_meters

    Ultrasonic flow meter; Utility submeter; V. Vortex flowmeter; W. Water metering This page was last edited on 7 January 2018, at 21:41 (UTC). Text is available under ...

  6. Water metering - Wikipedia

    en.wikipedia.org/wiki/Water_metering

    Ultrasonic water meters are highly accurate devices, with residential models capable of measuring flow rates as low as 1 liter per hour (L/h). [2] They feature wide flow measurement ranges, require minimal maintenance, and have long lifespans due to the absence of internal mechanical components that could wear out over time. [3]

  7. Ultrasound - Wikipedia

    en.wikipedia.org/wiki/Ultrasound

    Ultrasonic sensors are also used to detect intruders; the ultrasound can cover a wide area from a single point. The flow in pipes or open channels can be measured by ultrasonic flowmeters, which measure the average velocity of flowing liquid. In rheology, an acoustic rheometer relies on the principle of ultrasound.

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