Optical fibers are well suited for deployment in boreholes as they can tolerate harsh environments, i.e. high pressures and temperatures, or strongly corrosive media, and are immune to electromagnetic interference.
The following devices are available for fiber-optic field and laboratory experiments: distributed temperature sensing (DTS), distributed dynamic strain sensing (DDSS), distributed strain sensing, interrogator for fiber-optic point-sensing (FBG, Fabry-Perot), devices for fibre …

The devices for geoelectric measurements include various tools such as a GeoTom, resistivity probes, non-polarizable probes and electrode cables of various lengths for surface and downhole application. A sandbox model (diameter and height 0.6 m) is employed for miniaturized geoelectric measurements. The optoelectronic laboratory provides a suitable development peripheral to create system solutions based on optical, electronical and mechanical components and thus to support the engineering work …