Abstract: The present disclosure relates to a method for operating a measuring point in process engineering, wherein at least one Lidar (light detection and transmission) system is used at the measuring point, comprising: acquiring spatial information from the surroundings of the measuring point by means of the Lidar system; extracting object information from the spatial information; and reconstructing and identifying objects on the basis of the object information and associating the object information with the reconstructed and identified objects.

Abstract: A gradiometer for determining electrical conductivity of a medium contained in a containment, comprising: at least a first electrical coil, a second electrical coil and a third electrical coil, wherein the first coil is embodied as a transmitting coil, wherein the second and third coil are embodied as receiving coils; and a holding apparatus. The first, second and third coils are wound on the holding apparatus. The holding apparatus is arranged through a containment opening in a containment wall in such a manner that the first coil is positioned centrally with respect to the containment wall. The second and third coils are arranged mirror symmetrically to the first coil and are inductively coupled with the first coil.