The Thermal Hysteresis of a Standard Platinum Resistance Thermometer
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The ETS-25-type standard thermometers manufactured by a single company are investigated. It is shown that instability of the thermometers during calibration may be due to the occurrence of stresses in the platinum wire of the sensitive element, and not due to oxidation of the platinum.
Keywordsplatinum resistance thermometer stability thermal hysteresis calibration of the platinum thermometer
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