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EMBEDDED FIBER BRAGG GRATING SENSOR FOR STRUCTURAL HEALTH MONITORING - Printable Version +- Free Academic Seminars And Projects Reports (https://easyreport.in) +-- Forum: Seminars Topics And Discussions (https://easyreport.in/forumdisplay.php?fid=30) +--- Forum: Engineering Seminars Topics (https://easyreport.in/forumdisplay.php?fid=7) +---- Forum: Mechanical Seminar Topics (https://easyreport.in/forumdisplay.php?fid=8) +---- Thread: EMBEDDED FIBER BRAGG GRATING SENSOR FOR STRUCTURAL HEALTH MONITORING (/showthread.php?tid=40979) |
EMBEDDED FIBER BRAGG GRATING SENSOR FOR STRUCTURAL HEALTH MONITORING - ranjith c - 10-04-2017 [attachment=5416] This article is presented by: DIPTA RANJAN ROY DEPT OF ECE BIT, MESRA, RANCHI EMBEDDED FIBER BRAGG GRATING SENSOR FOR STRUCTURAL HEALTH MONITORING OBJECTIVES To design sensor system using Fiber Bragg Grating for Structural Health Monitoring (SHM). To analyze Reflection Spectra ,Transmission Spectra of different types of Fiber Bragg Grating. To implement FBG sensors in composite structures, composite beams etc. To sense different parameters (strain, temperature etc.) within the structure. To develop Digital Signal Processing techniques to interrogate different FBG. STRUCTURAL HEALTH MONITORING (SHM) Process of implementing a damage detection and characterization strategy in engineering structures. Automobiles, Civil infrastructures and Aerospace structures. Consists of a network of sensors Optical fiber sensors offers advantages like prone to EMI light in weight used in hazardous environment. SHM using Fiber Bragg Grating Sensors FIBER BRAGG GRATING PRINCIPLE Longitudinal periodic variation of the index of refraction in the core of an optical fiber Fig.2 (Schematic diagram of a FBG Fiber) The r.i variation in the core is given by The grating is written in the core by exposing it to intense Optical Interference Pattern. The Gratings are permanent. The light induced into the fiber follows Bragg s Law. |