The measurement uncertainty in the calibration of a thermometer depends on the calibration method used, the uncertainty contri



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ubath h: Spatial homogeneity is a gradient is observed as a change of a temperature reading of a thermometer according to a change of its position inside a calibration bath.

    • Basic gradients that can be observed are vertical and horizontal gradient but

    • sometimes more appropriate to define axial and a radial gradient. Uncertainty contribution of an axial gradient is determined as maximum temperature difference between two different positions in axial direction. The radial gradient is a maximum temperature difference between two different positions in a radial direction.

Example:



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