DEVICE BASED ON OPTICAL FIBER AND DIFFRACTION GRATINGS FOR THE MEASUREMENT OF TEMPERATURES THAT REACH THE THERMAL LIMITS OF THE OPTICAL FIBER, AND MANUFACTURING PROCESS

Device (10, 20, 30, 40) based on optical fiber (11, 21, 31, 41) for the measurement of temperatures that reach the thermal limits of the optical fiber (11, 21, 31, 41), using networks of diffraction (12, 22, 32) and subjected to an encapsulation process, comprising: - an optical transduction element consisting of an optical fiber (11, 21, 31, 41) in which a diffraction grating (12, 22, 32) is inscribed in an area thereof; - an interior coating (13, 23, 33) that lines the optical transduction element; - an outer protection block (14, 24, 34) inside which the transduction optical element covered by the inner cover (13, 23, 33) is placed; - as many inlet/outlet protections (15, 25, 35) as orifices presents the outer protection block (14, 24, 34), anchored to the outer protection block (14, 24, 34); - at least one support (16, 26, 36) attached to the outer protection block (14, 24,, 34); A manufacturing process of the device (10, 20, 30, 40) comprising the steps of: inscribing the diffraction grating (12, 22, 32) in the optical fiber (11, 21, 31, 41), applying the coating internal, apply the outer protection block (14, 24, 34), incorporate the entry/exit protections (15, 25, 35) and apply the support (16, 26, 36). (Machine-translation by Google Translate, not legally binding)