LVDT信号放大器资料.pdf

ATA-2001LVDTAmplifier

TrueAnalogConditionerwithDigitalCalibration

TheATA-2001LVDTAmplifierisageneralpurpose,

ACline-poweredLVDT/RVDTconditionerfeaturingstate-of-

the-artdesignprinciples.ThenewSMT(SurfaceMount

Technology)designusesanembeddedmicroprocessorto

generateaPWM-shapedsinewaveandcontrolall

calibrationfunctions.Theprocessorisalsoemployedinthe

demodulation,filtrationandsynchronizationoftheLVDT

signal.Allsettingsarestoredinnon-volatilememoryfor

restorationonpowerup.Zero,SpanandPhase

adjustmentsareaccomplishedviatheuseofsplashproof

frontpanelpushbuttonsanddigitalvoltagedividers,

eliminatingtheneedfordrift-inducingscrewadjust

potentiometers.Allamplifiercontrolsareaccessibleoutside

oftheruggedaluminumenclosure.

ThenewATA2001isCEcertified,andisintendedfor

themostrigorous,industrialapplications.TheATA2001

hasbeentestedtothehighestindustrialstandardsforEMI,

RFIandESD.

TheATA2001isdesignedforuniversalcompatibility

withall4,5and6leadLVDTs.Awiderangeofoscillator

frequenciescombinedwithtwoexcitationvoltages,3.5andAnautofall-backsynchronization

0.5Vrms,providemaximumversatility.Thehighpowerfeatureallowsreliablemaster/slave

carrieramplifierhasmorethantwicethedrivecapabilityof

operation,forpreventionofamplifiercrosstalk,

previousdesigns.AbletopowerlowimpedanceLVDTsat

withouttheworryofsyncsignalloss.Ifthe