A Basic Guide to RTD Measurements
1SBAA275 June2018SubmitDocumentationFeedbackCopyr ight 2018,TexasInstrumentsIncorporatedA BasicGuideto RTDMeasurementsApplicationReportSBAA275 June2018A BasicGuideto RTDMeasurementsJosephWuABSTRACTRTDs,or resistancetemperaturedetectors,are sensorsusedto amongthe mostaccuratetemperaturesensorsavailable, ,gettingaccuratemeasurementswithprecisio nanalog-to-digitalconverters(ADCs)requir esattentionto detailin designof measurementcircuitsand calculationof the an overviewof the RTD,discussingtheirspecifications,constr uction,and detailsin theiruse in shownwitha basicdesignguide,showingcalculationsnece ssaryto determinethe ADCsettings,limit measurementerrors,and verifythat the designfits in theoperatingrangeof the of Figures1PT100RTDResistanceFrom 200 C to 850 200 C to 850 ,Three.
copper. The PT100 is a common RTD constructed from platinum with a resistance of 100 Ωat 0°C. RTD elements are also available with 0°C resistances of 200, 500, 1000, and 2000 Ω. 1.1 Callendar-Van Dusen Equation The relationship between platinum RTD resistance and temperature is described by the Callendar-Van Dusen (CVD) equation.
Download A Basic Guide to RTD Measurements
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: