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Publication Citation: Uncertainty Budgets for Comparison Calibrations of Thermocouples

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Author(s): Dean C. Ripple; K Garrity;
Title: Uncertainty Budgets for Comparison Calibrations of Thermocouples
Published: August 07, 2005
Abstract: By means of concrete examples, we discuss the determination of an uncertainty budget for calibration of thermocouples by comparison techniques. In the first example, the calibration of a type T thermocouple (copper versus copper-nickel alloy) in a stirred liquid bath with a platinum resistance thermometer as a reference is considered. The second example is the calibration of a type K (a nickel-chromium versus nickel-aluminum alloy) thermocouple at temperatures up to 1200 C in a tube furnace, using a platinum-rhodium alloy thermocouple as a reference. Methods for determining the magnitudes of these uncertainties are given for each uncertainty component.
Conference: NCSL International Annual Workshop and Symposium
Proceedings: 2005
Dates: August 7-11, 2005
Keywords: calibration,thermocouple,thermometer,uncertainty
Research Areas: Thermometry, Thermometry, Calibrations (Thermodynamic)
PDF version: PDF Document Click here to retrieve PDF version of paper (129KB)