Geodetic method of the fuel tank form inspection

Fuel tanks are usually built of metal and have got a cylindrical form. Due to permanent exposition to different weather conditions, they change their form in time. However, the calculation of fuel volume is calculated using the original tank dimensions, which yields to huge differences in the actual volume. Dimensions of the tank shall be calculated with the measurement uncertainty of 1 mm, according to requested accuracy of the tank volume. A geodetic method of tank dimensions determination is presented in the paper. We estimated the measurement accuracy of geometrical quantities in order to reach the requested measurement uncertainty of tank dimensions. The method is tested with a real example.

► We designed the horizontal and height network of the object.
► The networks are established in the field with proposed accuracy.
► We estimated the previous accuracy of the measuring quantities.
► All measurements are performed following the requested metrological conditions.
► Using the precise geodetic methods, we achieved mm accuracy of observed points on the object.