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accelerated corrosion test 1

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fiber Bragg grating (FBG) 1

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Key point selection in large-scale FBG temperature sensors for thermal error modeling of heavy-duty CNC

Jianmin HU, Zude ZHOU, Quan LIU, Ping LOU, Junwei YAN, Ruiya LI

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4, Pages 442-451 doi: 10.1007/s11465-019-0543-0

Abstract: Novel temperature sensors based on fiber Bragg grating (FBG) are developed in this study.A total of 128 FBG temperature sensors that are connected in series through a thin optical fiber areKey TMPs are selected using these large-scale FBG temperature sensors by using the density-based spatial

Keywords： thermal error heavy-duty CNC machine tools FBG key TMPs prediction model

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Structural health monitoring with fiber optic sensors

F. ANSARI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2, Pages 103-110 doi: 10.1007/s11465-009-0032-y

Abstract: Optical fiber sensors have been successfully implemented in aeronautics, mechanical systems, and medical applications. Civil structures pose further challenges in monitoring mainly due to their large dimensions, diversity and heterogeneity of materials involved, and hostile construction environment. This article provides a summary of basic principles pertaining to practical health monitoring of civil engineering structures with optical fiber sensors. The issues discussed include basic sensor principles, strain transfer mechanism, sensor packaging, sensor placement in construction environment, and reliability and survivability of the sensors.

Keywords： Bridges structural health monitoring smart skins cracks strains displacements fiber optic sensors FBG

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Monitoring corrosion of reinforcement in concrete structures via fiber Bragg grating sensors

Zhupeng ZHENG, Xiaoning SUN, Ying LEI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3, Pages 316-319 doi: 10.1007/s11465-009-0040-y

Abstract: In this paper, using fiber Bragg grating (FBG), a corrosion sensor for monitoring steel rebars embeddedfact that the volume and diameter of a rebar embedded in concrete will enlarge due to corrosion, an FBGdiameter leads to the increase in fiber strain, which can be measured by the shift of the wavelength of FBGThe corrosion extent can be quantitatively evaluated through the change in the wavelength of FBG.

Keywords： fiber Bragg grating (FBG) corrosion concrete structures accelerated corrosion test