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MSP430FR6043: Question using the EVM for flow detection

Part Number: MSP430FR6043

Hi team.

Our customer testing the flow detection function with our EVM board and JiaKang ultrasound transducer. They have meet below questions.

1. The value of Absolute TOF is unstable and sometime fall to 0 when no flows through the tube. What is the reason for that? Is there any suggestions to solve it?

2. the echo acquired from the signal is small, is there any method to improve it?

Thanks a lot 

Matthew 

  • Hi Mattew,

    Could you share USS configuration page and ADC wvaeform? I think this should caused by incorrect parameter.

    For Q1: Please try to change some para to get a good waveform, like this one:

    For Q2: How long for two transducer? I tested Jiakang transducer with about 9cm, the result as below:

    Thanks!

    Best Regards

    Johnson

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