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MSP430FR6047: msp430fr6047

Nidhi Rao
Prodigy 220 points

Part Number: MSP430FR6047

Hello

As per the documentation provided msp430fr6047 with the USS module can support up to 4GPM. Can this be extended to 40GPM?

Regards, 

Nidhi Rao

  • 0
    TI__Mastermind 41850 points
    Hi Nidhi

    The answer is yes.
    But it is depended some factors like (a) spacing between the transducers (b) receive capture duration (c) spacing between the upstream (UPS) and downstream (DNS) firings. We did test for 1 MHz transducers from Jiakang pipe with (a) spacing = 73 µs (b) capture duration = 40 µs (c) UPS/DNS gap = 150 µs. This gave us a total measurement time of about 2 ms with MCLK = 8 MHz. Please note that our software is also NOT architected for this type of application. Additional possible optimizations:
    •the computation of previous measurement can be done while the next measurement firing and capture is in progress. Our SW implements this in serial blocking fashion.
    •MCLK can be set to 16 MHz that should speed up the computation portion further. Our SW currently programs this to 8 MHz.

    By the way, can you show us some information about the pipe size, transducer frequency and spacing between the transducers or more things are mentioned before ?

    Best regards
    Gary
  • 0 in reply to Gary Gao
    TI__Expert 7365 points
    Hi Nidhi,

    Gary is discussing the measurement rate which is the number of DTOF measurements you need to take each second.

    With respect to the max flow rate, the App Note at www.ti.com/.../slaa742 did mention that the device and USS SW Library and example application code provided at www.ti.com/.../MSP-Ultrasonic-Design-Center can work till 40 GPM. But customers have also tested flow rates > 130 GPM on a DN45 pipe. The max flow rate supported is obviously dependent on the pipe sizes. So, the device and SW can definitely support 40 GPM flow rate.

    Srinivas

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