Fiber optic sensing apparatus and method for sensing parameters involving different parameter modalities
First Claim
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1. In an optical-based sensing apparatus, a method comprising:
- providing an optical fiber;
disposing a buffering layer around the optical fiber; and
selectively configuring the buffering layer by selectively injecting at least one resin to form at least one of a plurality of optical sensing zones spatially arranged along a length of the optical sensing apparatus to sense parameters comprising different parameter modalities.
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Abstract
An optical-based sensing apparatus and method are provided. A sensing apparatus (10) may include a tube (30). An optical fiber (12) may be encased in the tube. A buffering layer (14) may be interposed between the optical fiber and the tube. The buffering layer and/or the tube may be selectively configured to form along a length of the apparatus a plurality of optical sensing zones (16, 18, 20) spatially arranged to sense parameters involving different parameter modalities.
37 Citations
23 Claims
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1. In an optical-based sensing apparatus, a method comprising:
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providing an optical fiber; disposing a buffering layer around the optical fiber; and selectively configuring the buffering layer by selectively injecting at least one resin to form at least one of a plurality of optical sensing zones spatially arranged along a length of the optical sensing apparatus to sense parameters comprising different parameter modalities. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An optical-based sensing apparatus comprising:
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a tube; an optical fiber encased in the tube; and a buffering layer interposed between the optical fiber and the tube, the buffering layer and/or the tube selectively configured to form along a length of the apparatus a plurality of optical sensing zones spatially arranged to sense parameters comprising different parameter modalities, wherein the buffering layer comprises at least one resin injected to form at least one of the plurality of optical sensing zones and at least one respective property of the buffering layer and/or at least one respective property of the tube is varied along the length of the optical sensing apparatus to tune a sensitivity of a respective sensing zone to a respective parameter. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. An optical-based sensing apparatus comprising:
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a tube; an optical fiber encased in the tube; a buffering layer interposed between the optical fiber and the tube, the buffering layer and/or the tube selectively configured to form along a length of the apparatus a plurality of optical sensing zones spatially arranged to sense parameters comprising different parameter modalities, wherein at least one respective property of the buffering layer and/or at least one respective property of the tube is varied along the length of the optical sensing apparatus to tune a sensitivity of a respective sensing zone to a respective parameter; and at least one heater element disposed along the length of the apparatus configured to induce a thermal response indicative of the optical sensing zones.
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Specification