Accuracy of the approximation function deduced from the fixed 3-points calibration delivered with the cernoxTM sensor

The cernoxTM sensor is delivered with a 3-point resistance versus temperature calibration that permits the construction of an individual interpolation table by using the data in the CERN thermometer database. For instance at the 4.2 K point, the individual calibration and the manufacturer data are within +/-0.1 K for 99.39% of a sample population of about 5700 sensors. Preliminary results also indicate that accuracies of 0.1 K and 1 K can be obtained below respectively 5 K and 77 K. (author)