Experimental Verification of Doppler Effect with the Refraction Method.pdf

Vo1．1No．1。March2010 JournalofMeastmmaeaatScienceandInsW tatino StunNo．1 ExperimentalVerificationofDoppler Effect、)l，iththeRefractionMethod LieFENG(7~ 冽)，Jia-biCHEN(陈家璧)，Jing-binHU(胡金兵)，Song-linZHUANG(庄松林) (OpticalElectronicInformationandComputerEngineeringCollege， UniversityofShanghaiforScienceandTcehnology，Shanghai200093，China) Abstract——Thetraditionalmethodof measurnigDopplerEffectisei． Do pplerVelocimeter(tDV)hasbeendevelopedtonlea． therreflectionordispersino ．Thisarticleclarifiesthatitcanalsoveri． usrethevelocities ofthe fluid flow．TheUDV emitsa fytheDopplerEffectwiththerefractino methxt．Wehavedesigned lightbeam ，nad ⅡleasIlrestheDo pplershiftinawave． theexperimentalsystem withthe methodof oofi~ heterodyne．using 1engthofreflcetionfrom particles mo vingwiththeflow． the refractionlightbeam from a pd船n，andmadetheexperiment． Theexperimentalresultsaleinaecordan~ withthe thee~ticalcalcu． However，mostappliactions arebasedonthereflcet． 1ation．Itisveryusefulni sortieparticularcase，slldlasniNegafiv~ de orscatterde liedatbeam toFfleasurethevelocity．With IndexMaterials(NIM)，toverifythe Dol~lre Eff ectwiththismeth． thedevelopmentofscience ，moreand ilK)rematerialsof od． Some new characteristichavebeenappearde ，such as the Negative-IndexMaterials(NIM)．In2003，N．Seddon KeywonT1s—refractionmethod；veriJumiontheDOpplerEffect；NIM andT．BearparkproposedthattheDo pplereffcetinthe