Abstract
In 2010, NIST measured the Boltzmann constant k with an electronic technique that measured the Johnson noise of a 100 Ω resistor at the triple point of water (TPW) and used a voltage waveform synthesized with a quantized voltage noise source (QVNS) as a reference. In this paper, we present measurements of k using a 200 Ω sense resistor and appropriately modified QVNS circuit and waveform. Preliminary results show agreement with the previous value within the statistical uncertainty. 1
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