Multiple Fiber Loop Strain Rosettes in a Single Fiber Using High Resolution Distributed Sensing

Autor:	Mark E. Froggatt, Alexander K. Sang, Dawn K. Gifford, Stephen T. Kreger
Rok vydání:	2012
Předmět:	Materials science Optical fiber Backscatter Strain (chemistry) business.industry Phase (waves) Physics::Optics Gauge (firearms) law.invention symbols.namesake Optics law symbols Fiber Electrical and Electronic Engineering Rayleigh scattering business Instrumentation Image resolution
Zdroj:	IEEE Sensors Journal. 12:55-63
ISSN:	2379-9153 1530-437X
DOI:	10.1109/jsen.2011.2119477
Popis:	Simple, circular loops in a single optical fiber bonded to a metal test sample are used to form multiple strain gauge rosettes. Strain measurements are made using an optical backscatter reflectometer to detect changes in the phase of the Rayleigh Scatter of the fiber with 160-μm spatial resolution along the length of the fiber. Applied strain levels, as well as the axis along which the loads are applied, are measured. Thermal gradients are also detected. The high spatial resolution and strain sensitivity of this technique enable highly functional fiber rosettes formed of small diameter loops of unaltered low-bend-loss optical fiber. Using this technique, multiple rosettes can be formed in a single fiber to created distributed measurements of principal strains.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bdaec7a17fadca0db910bb38c79ffba5 https://doi.org/10.1109/jsen.2011.2119477 Zobrazit plný text záznamu