土木工程专业用低变形传感器监测民用工程结构变形的一致性毕业论文外文文献翻译及原文

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1、毕业设计（论文）外文文献翻译文献、资料中文题目：用低变形传感器监测民用工程结构变形的一致性文献、资料英文题目:文献、资料来源：文献、资料发表（出版）日期院（部）:专业:班級:姓名:学号:指导教师:土木工程翻译日期：2017.02.14题i西北物流屮心2号楼没计Low-coherencedeformationsensorsforthemonitoringofcivil-engineeringstructuresD.Inaudi3,A.Elamarib,L.Pfluga,N.Gisinb,J.Breguetb,S.Vurpillot3"IMA

2、C,LaboratoryOfStressAnalysis,SwissFederalInstituteOfTechnology,CH-1015Lausanne，Switzerland'GAP,GroupofAppliedPhysics-OpticalSeciion,GenevaUniversityCH-1205Geneva,SwitzerlandReceived25January1993;inrevisedform8March1994;accepted25March1994AbstractAnoptical-fiberdeformation

3、sensorwitharesolutionof10pmandanoperationalrangeof60mmhasbeenrealized.Thesystemisbasedonlow-coherenceinterferometryinstandardsingle-modetelecommunicationfibers.Itallowsthemonitoringoflargestructuresoverseveralmonthswithoutnoticeabledrift.Nocontinuousmeasurementisneededand

4、thesystemisinsensitivetovariationsofthefiberlosses.Thistechniquehasbeenappliedtothemonitoringofa20mxsmxo.sm,120tonconcreteslaboversixmonths.Itispossibletomeasuretheshrinkageofconcreteanditselasticcoefficientduringpre-straining,givingreproducibleresultsingoodagreementwitht

5、heoreticalcalculationsandmeasurementsperformedonsmallconcretesamples.Thispaperdescribestheopticalarrangementandtheproceduresusedtoinstallopticalfibersinconcrete.Keywor&：Ikformationsensors;Civil-engineeringstructuresI.IntroductionBoththesecurityofcivil-engineeringworksandt

6、helawrequireaperiodicmonitoringofstructures.Themethodsusedforthispurpose,suchastriangulation，waterlevelsorvibratingstrings，arcoftenoftediousapplicationandrequireoneormanyspecializedoperators.Thiscomplexityandtheresultingcostslimitthefrequencyofthemeasurements.Furthermore，

7、thespatialresolutionisoftenpoorandtheobservationisusuallyrestrictedtothesurfaceoftheobject.Thereisthusarealdemandforatoolallowinganinternal,automaticandpermanentmonitoringofstructureswithhighaccuracyandstabilityoverperiodstypicallyoftheorderof100yearsforbridges.Inthisfram

8、ework，fiber-opticsmartstructures(i.e.，structureswithself-testingcapabilities)aregaininginimporta