| abstract |
A device for measuring strain in materials. The device comprises a passive optical fiber ring, a predetermined shape, at least one sensor arranged in line with said ring and associated with a substrate, and (i) emitted by a radiation source A means for introducing into the passive optical fiber ring, and (ii) receiving a portion of the radiation that resonates in the passive optical fiber ring; Detectors that detect the level of the emitted radiation and generate a corresponding signal, and coupled to the detector, based on the rate of radiation attenuation in the passive optical fiber ring, It consists of a processor that determines the level. |