Johnson Noise Thermometry - Page 3

Johnson noise thermometer - measuring temperature


We don’t measure temperature with a thermometer. We measure some property of a sensor that is affected by temperature. We then relate that to the thermodynamic temperature of the sensor through a process of calibration and ITS 90 (The International Temperature Scale of 1990). This enables us to determine the temperature of the sensor and therefore of the system to which it is thermally connected


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