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  4. IMU is extremely noisy

IMU is extremely noisy

Scheduled Pinned Locked Moved Starling & Starling 2
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  • Sasha BaganS Offline
    Sasha BaganS Offline
    Sasha Bagan
    wrote on last edited by
    #1

    We've recently purchased starling 2 drone and are having issues executing even simple flights (takeoff with RC and flying in position mode), we've triaged those issues to the imu. Once VIO gets enough features the drone becomes more stable but generally taking off in position mode often fails. We've recorded imu data via voxl-logger (200hz, --skip 4) and the chart looks extremely noisy
    image.png
    We've also tried recalibrating IMU (voxl-calibrate-imu-temp and voxl-calibrate-imu). Could it be that the IMU sensor is damaged? What next steps would you recommend?

    Alex KushleyevA 1 Reply Last reply
    0
    • Sasha BaganS Sasha Bagan

      We've recently purchased starling 2 drone and are having issues executing even simple flights (takeoff with RC and flying in position mode), we've triaged those issues to the imu. Once VIO gets enough features the drone becomes more stable but generally taking off in position mode often fails. We've recorded imu data via voxl-logger (200hz, --skip 4) and the chart looks extremely noisy
      image.png
      We've also tried recalibrating IMU (voxl-calibrate-imu-temp and voxl-calibrate-imu). Could it be that the IMU sensor is damaged? What next steps would you recommend?

      Alex KushleyevA Offline
      Alex KushleyevA Offline
      Alex Kushleyev
      ModalAI Team
      wrote on last edited by
      #2

      @Sasha-Bagan , what are the units on the vertical axis, is it m/s/s or G ?

      Sasha BaganS 1 Reply Last reply
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      • Alex KushleyevA Alex Kushleyev

        @Sasha-Bagan , what are the units on the vertical axis, is it m/s/s or G ?

        Sasha BaganS Offline
        Sasha BaganS Offline
        Sasha Bagan
        wrote on last edited by
        #3

        @Alex-Kushleyev m/s/s

        Alex KushleyevA 1 Reply Last reply
        0
        • Sasha BaganS Sasha Bagan

          @Alex-Kushleyev m/s/s

          Alex KushleyevA Offline
          Alex KushleyevA Offline
          Alex Kushleyev
          ModalAI Team
          wrote on last edited by
          #4

          @Sasha-Bagan , actually the noise not too bad, on average under 2m/s/s which is 0.2G, which is considered low.

          Are you able to create a video of QVIO overlay which can be viewed through voxl-portal? As well as post a px4 log. It is better not to fly in VIO control mode until this is resolved (fly in manual thrust/roll/pitch/yaw mode and collect the log + video).

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