Doppler vs Transit Time - Let's talk Ultrasonic Flow Meters

Ultrasonic flow meters are non-intrusive devices that use acoustic vibrations to measure the flow rate of the liquid. There are two types, Doppler and transit time. The Doppler and transit time flow meters operate on a similar principle, but the technology varies significantly, so it’s important to know which flow meter to use for your application.
An ultrasonic flow meter (non-intrusive Doppler flow meter) is a volumetric flow meter which requires particulates or bubbles in the flow. Ultrasonic flow meters are ideal for wastewater applications or any dirty liquid which is conductive or water based. Ultrasonic flow meters will generally not work with distilled water or drinking water. Aerations would be required in the clean liquid applications. Ultrasonic flow meters are also ideal for applications where low-pressure drop, chemical compatibility, and low maintenance are required.
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[@shawol275]

Wonderful explanation

[@gametonic3436]

Short and sweet

[@DwyerOmega]

Thank you! Glad you enjoyed it. Let us know if there are any other videos you'd like to see :)

[@lolboi2996]

Love it

[@furqaniqbal2241]

GOOD VIDEO
THANKS FOR YOUR HELP IN ISNTRUMENTATION COURSE😍

[@DwyerOmega]

HI Furqan, Happy to help... let us know if there are any other instrumentation topics that would be helpful.

[@alteriareiss]

can you explain what k-factor do in ultrasonic flowmeasurement?
Thank you very much sir

[@poornasri5431]

is both the transducers should be placed accurately parallel to each other? what formula will be implied to find the upstream and downstream speed. what if the transducer got moved after deployment. Any suggestions?

[@ushagupta3204]

In V method how sound wave travel for transient ultrasonic flow meter?

[@user-it2gk6qe5u]

How connect distance between sensor from pipe 4in

[@gauravrathi5877]

what if the flow in the pipe doesn't cover its complete area of cross section?

[@tombailey3172]

@@joelw2413 if the pipe was filled with liquid , the top portion could be moving gasses (air) that displace the moving liquid and allow flow. Similar to how residential drainage needs vent pipes to allow the air to replace fluid displacement.