Johnson Noise Thermometry - Page 7

Johnson noise thermometer - meeting the deamnd for a drift free thermometer


This demand for a better thermometer, especially from the civil nuclear and high value manufacturing sectors, was being hear repeatedly by metrologists at the UK’s National Measurement Institute, NPL. So it was in 2013 that NPL approached Metrosol to see if we could collaborate with them in the development of a drift-less Johnson noise thermometer suitable for use in these application. We started work on a feasibility study in October 2014 and completed this work in March 2016. The project exceeded expectations and led to the development of the world’s first practical Johnson noise thermometer.


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