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MSP430FR6043: High speed anemometer

A A8
Prodigy 105 points
Part Number: MSP430FR6043


Hi,

I have been trying to develop a anemometer and I have studied the application note slaa969 and have 3d printed the fixture and have purchased the recommended transducer. I have the below mentioned questions related to the same

1) Have you tested the enclosure in some wind tunnel or real place where the speed of wind can be calculated and it can be said that the MSP430FR6043 is capable for wind speed measurement up to so and so meters per second wind.

2) The reason behind keeping the sensor at 60 degree angle for the reflection to the plate in the provided 3D Printed fixture.

I am looking for answers on urgent basis. 

Thanks,

Aishwarya

  • 0
    TI__Genius 12615 points

    Hi,

    This is a proof of concept design and has not been tested in a wind tunnel.  The same design is applicable for indoor air measurements(HVAC).  In order to measure higher wind speeds, the angle of reflection between the transducers and the reflecting surface should be closer to 90 degrees (these are parameters that can be changed in the parametric 3D model). In addition, transducers with a wider beam angle will accomodate shifts in the beam at higher wind speeds. 

    BR,

    Leo

  • 0
    Prodigy 105 points

    Hi Leonardo,

    Thank you so much for your reply. I really appreciate your help. I just have a doubt that, Will the transducers mentioned in the application note be suitable for a design of anemometer to measure speed range from 0-70mps?

    Thanks,

    Aishwarya

  • 0 in reply to A A8
    TI__Genius 12615 points

    Hi Aishwarya,

    If the transducers are brought closer together and closer to the reflecting surface with a more orthogonal angle, it might work. The benefit in using these transducers is primarily with regards to sensitivity.  If your application doesn't require sensing small air currents(such as those produced by opening and closing doors), wider beam angle/less sensitive transducers may be preferred.

    BR,

    Leo

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