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Original question:

AWR1642BOOST: High Accuracy Lab: Measuring an deviation in the distance

IWR1642BOOST: High Accuracy Lab calibration question in IWR1642

Austin Huang
Intellectual 970 points
Part Number: IWR1642BOOST
Other Parts Discussed in Thread: IWR1642

Hi

About  High Accuracy sample in IWR1642.

I am confused about calibration the offset issue. there are few link. but those didn't have detail information and doc about calibration.

https://e2e.ti.com/support/sensors/f/1023/t/699928

https://e2e.ti.com/support/sensors/f/1023/t/737693

and below link mentioned "the Fluid Level Transmitter which has this correction applied."

https://e2e.ti.com/support/sensors/f/1023/t/792177?AWR1642BOOST-High-Accururacy-Range-Measurement-lab-example

I tested the same FW and same cfg file in mmwave_industrial_toolbox_4_1_0 with Fluid Level Transmitter Visualizer 1.0 and High_Accuracy_Visualizer 1.2.0.

the result 1575 mm is accuracy with real distance.

Please share how to do calibration based on High Accuracy sample.

Is any configuration setting to improving accuracy??

Austin

  • 0
    TI__Guru 50240 points

    Hi Austin,

    I believe the other visualizer might have had some offset applied as an earlier version of the demo had a constant offset. I don't believe that is the case any more though.

    Would you be able to discuss your results?

    Regards,

    AG

  • 0 in reply to Akash Gondalia
    Intellectual 970 points

    Hi AG:

    According my testing result. there is about 8cm offset with real distance.

    You mentioned there is constant offset in visualizer(High Accuracy and Fluid Level Transmitter Visualizer). Could you point out where is it?

    I just confused. In mass production and with High Accuracy application.

    1. Should we calibration for each mmWave device??

    2.if we need to calibration for each mmWave device. how to do that? and which parameter need to save and where can save the calibration data??

    3.if we don't need to do calibration.  The offset is constant value under same manufacture/SMT condition??

    4. if we don't need to calibrate for mmWave device. if possible make parameter to make result same as or close real distance.

    Austin

  • 0 in reply to Austin Huang
    Intellectual 970 points

    Hi,

    Any updated??

    Austin