Method and apparatus for the in situ calibration of a thermometer at low temperatures

摘要

The present invention relates to a device (1) for determining and / or monitoring the temperature (t) of a medium (5) comprising at least one temperature sensor (7) and at least one reference element (8) for the in situ calibration and / or validation of the temperature sensor (7). According to the present invention, the reference element (8) is at least partly made from a superconducting material (13), for which superconducting material (13) in the for the calibration of the temperature sensor (7) at least one phase transition temperature range relevant in the case of at least one first predetermined phase transition temperature (t_ph) occurs, wherein the superconducting material (13) in order to - a high-temperature superconductors are. The present invention further relates to a method for the in situ calibration and / or validation of a temperature sensor of a device according to the invention.n="25"