We have set up our smart sensor, ibridge, together with a rubberized displacement sensor, DS100 from Elasti Sense, and external 12V battery at each end of a girder under the Vallaråi bridge. The purpose is to measure how much the girder (read bridge) moves in the longitudinal direction, and how the movements are linked to changes in temperature.
Assignment for the Norwegian Public Roads Administration. Check our measurements by entering the menu item; Live sensor data