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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 ...
Flow measurement is the ... Portable turbine meters may be temporarily installed ... Ultrasonic Doppler flowmeters measure the Doppler shift ...
Doppler effect meters which utilize the Doppler Effect to determine the velocity of water passing through the meter. Transit Time meters which measure the amount of time required for the ultrasonic signal to pass between 2 or more fixed points inside the meter. Ultrasonic meters may either be of flow-through or "clamp-on" design.
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.
Portable ultrasound is a modality of medical ultrasonography that utilizes small and light devices, compared to the console-style ultrasound machines that preceded them. In most cases these mobile ultrasound systems could be carried by hand and in some cases even operated for a time on battery power alone.
This page was last edited on 27 November 2010, at 15:55 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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