文档介绍：PhotonicSensors(2013),:377-384 ApplicationofBrillouinOpticalCorrelationDomainAnalysis f0rCrackIdentificationinConcreteStructure MichioIMAIandSatoruMIURA KajimaTechnicalResearchInstitute,Tokyo,182003~Japan Correspondingauthor:MichioIMAI E-mail:michio@ Abstract:ThisPaperinvestigatestheapplicationofdistributedopticalfiberstrainsensorstocivil engineeringstructures,becausenoothertoolcansatisfactorilydetectthelocationofthe ,thelocationsofcracksintheconcretestructureareunknowna rri;therefore, correlationdomainanalysis(BOCDA).whichoffershighspatialresolutionbyusingstimulated Brillouinscatteringalongthewholelengthoftheopticalfiber,isusedinawiderangeofcivil engineeringapplications,andthesamehasundergonesignificantdevelopmentoverthelastdecade. InthisPaper’ ,periodicalcrackmonitoringwas essfullyexecutedonapedestriandeckforfiveyears. Ke