光纖布喇格光柵電流傳感技術(shù)的研究.pdf

1、燕山大學(xué)碩士學(xué)位論文光纖布喇格光柵電流傳感技術(shù)的研究姓名：鐘麗娜申請學(xué)位級別：碩士專業(yè)：測試計量技術(shù)及儀器指導(dǎo)教師：張穎20051001燕趣大學(xué)工學(xué)頊圭學(xué)證論文AbstractWiththedevelopmentofelectricpowerindustrytraditionalcurrentsensorscallnotsatisfytherequirementofindustrycommendablyinsomespecialcond

2、itionFibercurrentsensorwillbeapreponderantsubstitute，duetoitsgoodelectricinsulation，resistanceoftheinterferenceofelectromagneticandcorruption，smallvolume，lightweight，highsensitivityandstrongcapabilityofmultiplexingFibera

3、ndFBGcurrentsensorhaveagoodforegroundinthefuture，強esubjectofthispaperisFBGcurrentsensingtechnologyandwemakeadeeplyandsystematicallyresearchonFBGsensingtheoryandexperimenttechnologyFBGsensingtechnologyanditsrecentprogress

4、inapplicationsisiⅡffo≤I姒cedsystematically；thecoupledmodetheoryandthesensingprincipleofFBGareexpatiatedandtheBraggformulaandreflectivityformulaalededuced；theworkprinciple，varietyandessentialcharacteristicofPZTaleexpatiate

5、dindetail，andtheconfigurationofPZTpartsofanapparatusissummarizedThemechanismofpiezoelectricelectrostrietionisanalyzeddeeplyandthenormalizedcontrolmodelisintroducedaimingatanalyzinghysteresischaracteristic，andallelectrica

6、lpolarizationintensity(charge)controlmethodbasedoNtheaforementionedmodelwhichcalleffectivelyreducethehysteresischaracteristicisdiscussedAnovelcurrentsensorbasedonFBGcontrolledbyPZTisdesignedandthecurrentsensingprinciplef

7、ormula，namelytherelationshipofcurrentintensityandBraggwavelengthisdeduced。TheperformanceofFBGcurrentsensorstested。andtheexperimentalresultisconsistentwiththeoreticalanalysisAnenhanced—sensitivityschemeispresentedWedesign