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EVM430-FR6043: Receiving waveform shape

Guo Yan
Prodigy 160 points
Part Number: EVM430-FR6043

Hi

0m3/h

4m3/h

DNS Two spindles

DELTA ToF = 0...

Where is the configuration error?

At zero traffic, the data is very good.
At high flow rates, the shape of the accepted waveform will always change a lot. Why?

  • 0
    TI__Genius 9570 points
    Hi GUO YAN,

    Thanks for your posting, we will look into this and get back to you ASAP.

    Regards,
    Ling
  • 0 in reply to Ling Zhu2
    Prodigy 160 points
    I am using a 500k transducer. Do I have to use a 200k transducer?
    How to configure the 500k transducer?
  • 0
    TI__Genius 12615 points
    Hi Guo Yan,
    It's possible that your tube design is causing the issues you are seeing. A simple test is to move the transducers further away from the medium that is flowing and widen the channel of your tube so that there aren't any internal reflections. You might also try less sensitive transducers. Another test is to reduce the number of pulses. From your screen capture, it looks like the first 6 pulses don't have a problem. You might try changing your configuration to a 6 pulse configuration to see if the upstream and downstream (UPS/DNS) waveforms look more symmetric.
    BR,
    Leo

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