Long-period Gratings in-situ Sensing for Flow Monitoring in Liquid Composite Molding-中国Betway体育网页登陆

摘要 Liquidcompositemoulding(LCM)processesareusedtomanufacturehighqualityandcomplex-shapedcompositepartsintheautomotive,marine,aerospaceandcivilindustries.On-linesensingplaysanimportantroleincontrollingthequalityofthefinalproductintheLCMmanufacturingenvironment.Thelong-periodfibergrating(LPG)technology,anewreal-timefiberopticsensorsystem,wasdevelopedtomonitortheflowfrontprogression.Thesensoroperationandcharacterizationundervariousprocessconditionswerediscussedindetail.TheexperimentalresultsshowedthatLPGsensorswererobustandreliabletodetectthearrivalofresinatpre-selectedlocationsinstructureswithlow-mediumfibervolumefraction;howeverwerelimitedatdifferentdepthsinstructureswithhighfibervolumefraction.

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Long-period Gratings in-situ Sensing for Flow Monitoring in Liquid Composite Molding

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