>> P.204
LITEMATIC®VL-50-B/50S-B•Withameasuringforceofonly0.01N,theLitematicisidealformeasuringeasilydeformedworkpiecesorhigh-accuracycomponents.•Forworkpiecesforwhich0.01Nisinsufficient,eitherthe0.15Nor1Nmodel(factory-installedoption)isrecommended.•Thespindleismotor-drivenandstopswhenthecontactpointtouchestheworkpiece.Fromthenon,themaximum,minimum,ordifferencevaluecanbemeasuredusingaconstantmeasuringforce.High-accuracymeasurement•Highresolutionof0.01μm,andwidemeasuringrangeof50mm.•ThemeasuringtablesuppliedwithVL-50-Bisceramic,whichiscorrosionfree,foreasiermaintenanceandstorage.•Thespindleismadeoflowthermalexpansionmaterial.LitematicHeadVL-50S-BNote:Thestand(957460)issoldasanoption.SeparatetypeVL-50S-BLitematicVL-50-BBecausethemeasuringunitandthedisplayunitareseparate,theycanbeintegratedintotheuser'smeasurementsystem.Anoptionaldedicatedstandisalsoavailable.TipsConstantmeasuringforceprincipleAnunbalanced,parallel-linkstructureenablestheLitematictoofferalowandconstantmeasuringforce.TheLitematic'smeasuringforceisnotprovidedbyaspringbutcomesfromastructureresemblingabalancescale.Wecallthisa"parallellinkage."Amotorizedslidercarryingthelinkedspindlemovesdownitsguidewaywhilethelinkageissupportedonastop,asshowninFig1.Whenthespindlecontactstheworkpiece(Fig.2)itmovesthelinkageupoffthestopandthemotorishalted.Atthispointthelinkageisnowsupportedbytheworkpiece,andthusaconstantmeasuringforceisapplied.Fig.1.Thespindlemovesdownwardstowardstheworkpiece.Fig.2.Thespindleliftsthelinkageoffthestopintothemeasuringposition.ParallellinkParallellinkCounterweightCounterweightThecontactpointonthespindletouchestheworkpiece,liftingthelinkageoffthestopandhaltingthemotorthatwasloweringthespindle,thusapplyingaconstantforcetotheworkpiece.4-1
| < 
| 
> | 
>>
