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公开(公告)号：US11513078B2
公开(公告)日：2022-11-29
申请号：US17086782
申请日：2020-11-02
摘要： Distributed fiber optic sensors formed by covering the fibers with tubing are provided. The tubing including responsive materials formulated or configured to, responsive to exposure to one of a target chemical species and a target radiation particle, change a relative size and generate a localized effect on or in the optical fiber.
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公开(公告)号：US11371943B2
公开(公告)日：2022-06-28
申请号：US17060253
申请日：2020-10-01
IPC分类号： G01N21/77 , C03C25/1065 , G01M3/04 , G01T3/06 , G02B6/036
摘要： Distributed fiber optic chemical and radiation sensors formed by coating the fibers with certain types of response materials are provided. For distributed chemical sensors, the coatings are reactive with the targets; the heat absorbed or released during a reaction will cause a local temperature change on the fiber. For distributed radiation sensors, coating a fiber with a scintillator enhances sensitivity toward thermal neutrons, for example, by injecting light into the fiber. The luminescent components in these materials are taken from conjugated polymeric and oligomeric dyes, metal organic frameworks with sorbed dyes, and two-photon-absorbing semiconductors. The compositions may exhibit strong gamma rejection. Other scintillators combining luminescent materials with neutron converters are available. With a multiple-layer coating, it may be possible to identify the presence of both neutrons and gamma rays, for example. Coatings may be applied during manufacture or in the field.
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公开(公告)号：US20220107273A1
公开(公告)日：2022-04-07
申请号：US17086782
申请日：2020-11-02
摘要： Distributed fiber optic sensors formed by covering the fibers with tubing are provided. The tubing including responsive materials formulated or configured to, responsive to exposure to one of a target chemical species and a target radiation particle, change a relative size and generate a localized effect on or in the optical fiber.
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