How can the deflection point mid-span be measured on a bridge?
By installing Optical Strands parallel to the neutral axis, above and below, it is possible to measure the average variations in the curve in the relevant section of the bridge by converting data so that it can be gauged during the course of tests. By installing 3 to 5 pairs of Optical Strands per bridge span, it is possible to obtain a valid curve function for the bridge as a whole. By integrating this function twice, we are able to calculate the horizontal and/or vertical deformations of the bridge. All this data is automatically processed by our software. NB: Bridges entail all kinds of construction materials, geometrical shapes and contexts. Since the OSMOS system can be used for the whole range of engineering structures, it can also be used for all kinds of structures.