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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Rajan, Ginu
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Publications (4/4 displayed)
- 2024Resonance Effects in Periodic and Aperiodic Lattice Structurescitations
- 2021Post-gel polymerisation shrinkage profiling of polymer biomaterials using a chirped fibre Bragg gratingcitations
- 2013A fast response intrinsic humidity sensor based on an etched singlemode polymer fiber Bragg gratingcitations
- 2011Stress induced in optical fiber sensors embedded in composite materials by the lamination process
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article
A fast response intrinsic humidity sensor based on an etched singlemode polymer fiber Bragg grating
Abstract
A simple, low cost and fast response time intrinsic relative humidity sensor system based on an etched singlemode polymer fiber Bragg (POFBG) is presented in this paper. A macro-bend linear edge filter which converts the humidity induced wavelength shift into an intensity change is used as the interrogation technique. The singlemode POFBG is etched to micro-meters in diameter to improve the response time of the humidity sensor. A response time of 4.5 s is observed for a polymer FBG with a cladding diameter of 25 μm. The overall sensor system sensitivity was 0.23 mV/%RH. The etched POFBG humidity sensor shows anexponential decrease in response time with a decrease in fiber diameter. The developed sensor might have potential applications in a wide range of applications where fast and accurate real time humidity control is required.