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Smart sensors are the key components of pervasive computing networks. The fiber Bragg grating (FBG) can be composed of the distributed sensing networks for the high sensitivity. The cross-sensitivity is the intrinsic problem of FBG sensors. We analyzed the influence of the measurand-strain (or temperature) effect on temperature (or strain) in fiber-optic sensors that employ FBGs. Based on the mode-coupling...
In pervasive computing, fiber optic can be adaptive to smart apperceive the complicated environment because of the sensitivity. This paper analyzed the influence of the measurand-strain (axial strain and radial strain) and temperature effect on propagation wave phase in fiber-optic sensors. The equations of propagation wave phase shift caused by strain and temperature change were deduced, and sensitivity...
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