>> P.270
NanoLinearNTisstructuredwithmagnetandopticallinearencoderscaledeployedasarotator,andanair-corecoilandopticallinearencoderscaleheaddeployedasastatorwithinitscompactbody.Asindicatedintherightfigure,thecoilissubjecttohorizontalforceduetofluxthatalwaysworksinverticaldirectionbythemagnetandcoilyoke,androtationalfluxthatisgeneratedaroundthecoilbythecoilcurrent(Fleming'sleft-handrule).Byswitchingthecoilcurrenttocertaindirectioncorrespondingtothefluxdirection,continuousthrustforceinacertaindirectioncanbeobtainedandlinearmotionsoftherotatorismaintained.Travelingandaccuratepositioningareperformedbyaccelerationcontrolbycurrentamountandfeedbackbylinearencoder.OperatingprincipleofNanoLinearNTTabletraveldirectionMagnetyoke(rotator)Magnet(rotator)Coil(stator)FluxCoilyokeUltracompact,state-of-the-artlinearmotortableNTseries!NanoLinearNTspecificationslist25725±0.525765±0.536825±0.536865±0.5368120±0.5StandardtypeNT···VNT55V25NT55V65NT80V25NT80V65NT80V120ModelandsizeSectionalshapeEffectivestrokelengthmmResolutionμmRatedthrustN55555MaximumloadmasskgMaximumthrustNPositioningrepeatabilityμm551430.6100.50.1±0.530.8180.50.1±0.5500270500270NT38V10NT38V180.50.58016Maximumspeedmm/s501045±0.5252.510±0.570Naturalaircooling:16Aircooling:20Naturalaircooling:16Aircooling:2025±0.57010±0.5PickandplaceunitNT···XZHighaccuracytypeNT···HNT80XZ4510HighthrustpickandplaceunitNT···XZHNT90XZH2510ModelandsizeSectionalshapeEffectivestrokelengthmmResolutionμmRatedthrustN-0.1-0.2MaximumloadmasskgMaximumthrustNPositioningrepeatabilityμm25565±0.1±0.1NT88H655Maximumspeedmm/s2588X-axisZ-axisX-axisZ-axis18153210185(168)16029.5260(268)29.53826110.50.1130027010000.50.1130027010000.50.1130027010000.50.1130027010000.50.1130027010000.50.10.50.10.50.10.50.1130080080013002702700.05400NT88H250.01900.054000.01902701000100010001000270255525NanoLinearNTisamovingmagnettypelinearmotortablewithextremelylowprofile.Forguidingpartsofthemovingtable,LinearWayorCrossedRollerWaywell-establishedintheareaofminiaturelinearmotionrollingguidesisusedincombinationwithlinearmotorandhigh-resolutionlinearencodertorealizehighlyaccuratepositioning.Thankstoadoptionofhigh-performanceneodymiummagnet,largethrustforcecanbeacquiredandthereforehigh-speedandhighlyresponsivepositioningispossible,despiteitsverysmallbody.Inaddition,highcleanlinessisrealizedasthemechanicalcontactpartisonlythelinearmotionrollingguidethankstoadoptionofalandmarkdrivingmethodwithoutmovingcables.Ⅱ2461N=0.102kgf=0.2248lbs.1mm=0.03937inch
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