The fibre optic anchor strain chain ASC-01 contains different strain segments in series. The sensor configuration has a small diameter and is designed to become embedded inside structures (e.g. concrete, grout, plaster, …). Each strain segment contains 1 FBG in between two anchor points. A relative displacement between the two anchor points is transferred into a change in the strain state of the FBG. The standard length of a segment can be chosen between 0.5 and 5 meters. The sensor can be connectorised at both ends to make series configurations possible.

The borehole deformation system is based on the Fibre Bragg Grating technology and is designed to monitor the deformation in the longitudinal direction of a borehole. Within the borehole, different fixation points can be realized at well defined positions by using special borehole anchors. Furthermore, a strain cable SC-01 is connected between each anchoring point and a metal head plate fixed at the entrance of the borehole. In this way, the displacement of each anchoring point relative to the entrance point of the borehole can be measured. Furthermore, a temperature cable can be inserted to measure the temperature distribution inside the borehole.