Resistance thermometer
Precautions while using Laboratory Thermometers
Resistance thermometer
Inthistypeofthermometerthechangeinresistanceofconductorsorsemiconductorswithtemperaturechangeisusedtomeasuretemperature.Usually,thetemperaturesensitiveresistanceelementisincorporatedinabridgenetworkwhichhasareasonablyconstantpowersupply.Althoughadeflectioncircuitisoccasionallyused,almostallinstrumentsofthisclassuseanullbalancesystem,inwhichtheresistancechangeisbalancedandmeasuredbyadjustingatleastoneotherresistanceinthebridge.Metalscommonlyusedasthesensitiveelementinresistancethermometersareplatinum,nickel,andcopper.
Bimetallic thermometer
Thermometerconsistsofaliquid
Bimetallic stripthermometers
Laboratory thermometers are devices used to measure temperature
Considerations
Filledsystemthermometer
Discard the plastic cover and put a new one on
Types of Thermometers
Turn the thermometer on and make sure the screen reads zero
Themometer
Mercury laboratory thermometers
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