The invention discloses a packaging method for a sensitivity enhanced
optical fiber grating temperature sensor, belongs to the technical field of sensors, and relates to a sensitivity enhanced packaging method of the
optical fiber grating temperature sensor. The method is characterized in that the
optical fiber grating is packaged into a
metal capillary tube by applying prestress to the optical
fiber grating and gluing two ends of the optical
fiber grating, and the
metal capillary tube packaged with the optical
fiber grating is put into an outer stainless
steel tube the internal
diameter of which is greater than the external
diameter of the
metal capillary tube, then
heat conducting silicone grease is filled between the metal capillary tube and the outer stainless
steel tube, and finally the two ends of the outer stainless
steel tube are connected with an optical fiber jacket or an
optical fiber cable; and a fiber
pigtail of the optical fiber grating must be ensured to be in a bent state during the packaging process. The beneficial effects of the packaging method is that the sensitivity enhanced optical fiber grating temperature manufactured by the packaging method has the advantages of high
temperature sensitivity,
rapid response speed, simple structure, reasonable design,
high survival rate of the field installation and the like, and can be used for high-precision
temperature measurement in such occasions as intense
electromagnetic radiation, flammable and explosive occasions and the like.