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I want to make an ultrasonic air flow meter. Which Arduino board is suitable for it?

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Hi,

 

I want to make an ultrasonic air flow meter. Which Arduino board is suitable for it? I would use two ultrasonic sensor to measure the difference of transmit time to calculate the air flow velocity. So I also want to know which circuit / circuit diagram I can use to connect between the ultrasonic sensors and the Arduino board. 

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    The problem you both may face is the time between the pulse out and the response being detected, I have worked with ultrasonic flow meters in the past but they where on gas pipeline measuring a meter in diameter

     

    if your pipe is only an inch or so you may not have much resolution on the measurement, without doing the math the speed of sound and the distance will give you an idea of the timing, an arduino running at 16Mhz may not be able to capture the events with much accuracy (Most of the ultrasonic sensors do not resolve mm accuracy so external hardware may be necessary or atleast the use of actual machine/assembly code on the micro

     

    Regards

     

    peter

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  • 0

    The problem you both may face is the time between the pulse out and the response being detected, I have worked with ultrasonic flow meters in the past but they where on gas pipeline measuring a meter in diameter

     

    if your pipe is only an inch or so you may not have much resolution on the measurement, without doing the math the speed of sound and the distance will give you an idea of the timing, an arduino running at 16Mhz may not be able to capture the events with much accuracy (Most of the ultrasonic sensors do not resolve mm accuracy so external hardware may be necessary or atleast the use of actual machine/assembly code on the micro

     

    Regards

     

    peter

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