Brantax - engineering survey

underwater, underground
and surface investigation

Vertical magnetic gradient

Measurements of the variation of vertical magnetic gradient in order to identify metal objects hidden (buried or submerged) on the alignment of the horizontal directional drilling that undercrosses the Danube between Romania and Bulgaria. For the absolute positioning of measurements, a GPS Stonex GNSS equipment with high precision was used. The measuring equipment was magnetically isolated from the rest of the boat so that there would be no influence caused by boat.

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