Fiber optic based device and diffraction networks for measuring temperatures that reach the thermal limits of the optical fiber, and manufacturing process

摘要

Device (10, 20, 30, 40) based on optical fiber (11, 21, 31, 41) for measuring 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 in an area thereof it is a diffraction net (12, 22, 32) is inscribed; # - an inner covering (13, 23, 33) covering the optical transduction element; # - an outer protection block (14, 24, 34) inside which the optical transduction element coated by the inner lining (13, 23, 33) is located; # - as many input / output protections (15, 25, 35) as holes the outer protection block (14, 24, 34) has , 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 On the device (10, 20, 30, 40) comprising the steps of: inscribing the diffraction network (12, 22, 32) in the optical fiber (11, 21, 31, 41), applying the inner coating, applying the outer protection block (14, 24, 34), incorporate the input / output protections (15, 25, 35) and apply the support (16, 26, 36).