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mrad to chargeability (mv/v)

  • Concern : API
  • Platform : Linux
  • Version of the software: v3.6.1
  • Problem description : Conversion from mrad to mv/V brings opposite results.
  • How to reproduce it :
    I am new in geophysics.I am asking this from a beginner view.Why do I get opposite results on the final image when I convert mrad values to mv/V.
    I found this formula on issues here x['Phase(mrad)']/-k where for syscal k = 1.2 but we can also assume it to be 1.But after running the formular everything is fine but images for mrad and mv/V shows different things as show below.
    Screenshot_from_2025-10-09_00-33-49

Screenshot_from_2025-10-09_00-34-07


Where there is high chargeability values in the mv/V image there is lower mrad values.

Also Are negative values normal in the reading bar?
I use this file for inversion KITATI_ERT_Line_2.xlsx_-_Kitati_ERT.csv

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