Uncertainty components of a temperature calibration using a dry block
Making a temperature calibration using a dry block seems like a pretty simple and straight forward thing to do, however there are many possible sources for uncertainty and error that should be considered. Often the biggest uncertainties may come from the procedure on how the calibration is done, not necessarily from the specifications of the components.
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What is a “dry block”?
EURAMET Guidelines
Uncertainty components
Internal reference sensor
External reference sensor
Axial temperature homogeneity
Temperature difference between the borings
Influence of loading
Stability over time
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Summary
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