LeCroy WaveRunner Xi-A

WAVERUNNER Xi-A AND MXi-A SERIES
62 WRXi-A-GSM-E Rev A
PersistenceSetup
TheanalogPersistencefeaturedisplaysyourwaveformandrevealsitsanomalies
forarepetitivesignal.UsePersistencetoaccumulateon‐screenpointsfrommany
acquisitionstoseeyoursignalchangeovertime.Theinstrumentpersistencemodes
showthemostfrequentsignalpaththree‐dimensionallyinintensitiesofthesame
color,orgra
dedinaspectrumofcolors.
Saturation Level
WhenyouselectAnalog modefromthePersistencedialog,each
channelisassignedasinglecolor.Asapersistencedatamapdevelops,
differentintensitiesofthatcolorareassignedtotherangebetweena
minimumandamaximumpopulation.Themaximumpopulation
automaticallygetsthehighestintensity,theminimumpopulationgets
thelowestintensity,andinter
mediatepopulationsgetintensitiesin
betweentheseextremes.
Seetheon‐lineHelpformoreinformation.
Colormodepersistence,selectedbytouchingColor,worksonthe
sameprincipleastheAnalogpersistencefeature,butinsteadusesthe
entirecolorspectrumtomapsignalintensity:violetforminimum
population,redformaximumpopulation.Asaturationlevelof100%
spreadstheintensityvariationacrosstheentiredistribution.Atlower
saturationlevels,theintensitysaturates(b
ecomesthebrightestcolor)
atthepercentagevaluespecified.Loweringthispercentagecausesthe
pixelstobesaturatedatalowerpopulation,andmakesvisiblethose
rarelyhitpixelsnotseenathigherpercentages.
3-Dimensional Persistence
Byselecting3d,youcancreateatopographicalviewofyourwaveform
fromaselectionofshadings,textures,andhues.Theadvantageofthe
topographicalviewisthatareasofhighestandlowestintensityare
shownaspeaksandvalleys,inadditiontocolororbrightness.The
shapeofthepeaks(p
ointedorflat)canrevealfurtherinformation
aboutthefrequencyofoccurrencesinyourwaveform.
TheinstrumentalsogivesyoutheabilitytoturntheXandYaxesofthe
waveformthrough180°ofrotationfrom‐90°to+90°.