QUESTIONS -4-SONO 316 WITH CORRECT ANSWERS

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QUESTIONS -4-SONO 316 WITH CORRECT ANSWERS

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QUESTIONS -4-SONO 316 WITH CORRECT ANSWERS

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QUESTIONS #4-SONO 316 WITH
CORRECT ANSWERS 2024/2025
IfMaM2.5MMHzMtransducerMproducesMultrasoundMwithMaMwavelengthMofM0.6Mmm,MfindMtheMmostMeffective
McrystalMthickness.M-McorrectManswer-0.3Mmm;MoneMhalfMtheMwavelength

TheMcrystalMthicknessMinMaM1MMHzMtransducerMisM__________thatMinMaM2MMHzMtransducer.M-
McorrectManswer-thickerMthan

TheMreverseMpiezoelectricMeffectMcanMbeMbestMdescribedMas:M-McorrectManswer-
mechanicalMdeformationMthatMresultsMfromMhighMvoltageMthatMisMappliedMtoMtheMcrystalMandMinMturnMge
neratesMultrasoundMthroughMchangingMtheMmaterialMshape

TheMtransducerM_______MhelpsMtoMdetermineMitsM________.M-McorrectManswer-
thickness,MresonantMfrequency

TheMfunctionMofMtheMdampingMmaterialMinMtheMtransducerMhousingMisMallMofMtheMfollowingMEXCEPT:M(a.Mr
educeMpulseMduration,Mb.MimproveMaxialMresolution,Mc.MreduceMspatialMpulseMlength,Md.MimproveMlateralM
resolution)M-McorrectManswer-improveMlateralMresolution

AssumingMaMfixedMfrequency,MwhatMhappensMifMtheMdiameterMofManMunfocusedMdiskMtypeMtransducerMisM
increased?M-McorrectManswer-theMbeamMwidthMinMtheMFresnelMzoneMisMreduced

AMtransducerMhasManMoperatingMfrequencyMofM5MMHzMthroughMsoftMtissueMandMaMSPLMofM10Mmm,MwhatMi
sMtheMlongitudinalMresolution?M-McorrectManswer-5Mmm

AxialMresolutionMcanMbeMimprovedMbyMusing:M-McorrectManswer-higherMfrequencyMtransducers

TheMamountMofMdispersionMinMtheMfarMfieldMofManMultrasoundMbeamMcanMbeMdecreasedMby:M-
McorrectManswer-usingMaMlargerMdiameterMtransducer

AMshortenedMspatialMpulseMlengthMresultsMin:M-McorrectManswer-betterMaxialMresolution

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Uploaded on: September 17, 2024
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