ANewUltra-smallPreloadedPiezoActuator
PreloadedpiezoactuatorisadevicewhichusespiezoeffecttogeneratedisplacementItis composedofpiezoceramicmaterial,metalelectrodeandpackagingmaterialPiezoceramic materialswilldeformundertheactionofelectricfield,resultingindisplacementMetal electrodesareusedtoapplyelectricfieldstocontrolthedeformationofpiezoceramics.The packagingmaterialisusedtoprotectpiezoceramicsandmetalelectrodes,whilealsoimproving themechanicalstrengthandprotectiveperformanceofthedevice.
Thepreloadedpiezoactuatorhastheadvantagesoffastresponsespeed,highprecision,low powerconsumptionandlonglife,andiswidelyusedinprecisioninstruments,automaticcontrol, medicalequipment,aerospaceandotherfields
CoreMorrowhashundredsofpreloadedpiezoactuatorsthatusetheinversepiezoeffectfor microandnanomotioncontrol,andtheirouterdiametersizesrangefrom9mmto45mm,and theirblockingforcecanalsobeupto50kNormoreThesepiezoactuatorsareavailablein threaded,flatorballconnections.
Apreloadedpiezoactuatorintroducedinthispaperisdifferentfromconventionalpiezo actuators,ithasnomechanicalinterface,andverysmalldimension,wenameitVS6.
ANewUltra-smallPreloadedPiezoActuator
TheoutsidediameterofVS6isonly6mm,theheightcanbefreelyselectedfrom10to40mm,its outputcanbeuptomorethan200N,andthestrokeisoptionalfrom08to50μm
BasicTechnicalData
Model:VS6
Stroke:0.8~50μmoptional
Blockingforce:>200N
No-loadresonantfrequency:>40Hz
Stiffness:>10N/μm
El.Capacitance:<1μF
Advantages
VS6smallpiezoactuatorshavemanyadvantages,suchas:
Fastresponse:Piezoactuatorshaveveryfastrespondandcancompletemotioninmicroseconds, makingthemsuitableforapplicationsrequiringhigh-speedresponse.
Highprecision:Themotionaccuracyofpiezoactuatorsisveryhigh,uptosub-micronlevel, suitableforapplicationsrequiringhighprecisioncontrol
Highreliability:Piezoactuatorshavenomechanicalcontact,sotheyhavehighreliabilityand longevity
Lowpowerconsumption:Piezoactuatorshaveverylowpowerconsumptionandaresuitablefor applicationsthatrequirelowpowerconsumption.
Miniaturization:Piezoactuatorsareverysmallinsizeandcanachievehigh-densityintegration, suitableforapplicationsrequiringminiaturizationdesign.
Noelectromagneticinterference:Piezoactuatorshavenoelectromagneticinterferenceandare suitableforapplicationsrequiringnoelectromagneticinterference
ANewUltra-smallPreloadedPiezoActuator
Applications
VS6seriessmallpiezoactuatorisappliedtoanelectricfieldtocauseasmalldeformationofthe internalpiezoceramic,resultinginmechanicalmicro-vibrationThismicromotionhasmany applications,suchasTDLASgasdetectionTheVS6seriessmallpiezoactuatorscanbeusedto adjustthelengthoftheopticalpathinthelaseropticalpath,thusachievingtheadjustmentof thelaserfrequency.InTDLAS(TunableDiodeLaserAbsorptionSpectroscopy)detection,the frequencyofthelaserneedstobepreciselyadjustedtotheabsorptionpeakofthedetected substancetoobtainaccuratedetectionresults.Therefore,asmallpiezoactuatorcanbeusedto adjustthefrequencyofthelasertoachieveaccuratedetectionofthesubstancebeingdetected Inaddition,smallpiezoactuatorscanalsobeusedtoadjustthepowerofthelasertoadaptto differentdetectionneeds
TheVS6ultra-smallpreloadedpiezoactuatorsproducemotionatthemicronlevelandhavea widerangeofapplicationsinthemicroandnanofields,suchas:
Micromechanicalsystems(MEMS):Preloadedpiezoceramicactuatorscanbeusedto manufactureactuatorsandsensorsinmicromechanicalsystems,suchasmicro-vibrators, micro-pumps,andmicro-valves.
Optics:Preloadedpiezoceramicactuatorscanbeusedtomanufactureopticalmodulatorsand opticalswitches,whichcanbeusedinareassuchasopticalcommunication,opticalstorageand opticalimaging.
Medical:Preloadedpiezoceramicactuatorscanbeusedtomakemicro-drugdeliverysystems andmicro-surgicalinstruments,whichcanbeusedinareassuchasminimallyinvasivesurgery andprecisionmedicine.
Aerospace:Preloadedpiezoceramicactuatorscanbeusedtomanufacturemicro-thrustersand micro-gyroscopes,whichcanbeusedinnavigationandcontrolsystemsintheaerospacesector.
Smartmaterials:Packagedpiezoceramicactuatorscanbeusedtocreatesmartmaterials,such assmartglassandsmartcoatings,whichcanautomaticallyadjusttheiroptical,electricaland thermalpropertiesinresponsetochangesintheexternalenvironment.
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