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arXiv · 2102.05942

Improvements on INRIM Coaxial Microcalorimeter and Outcome of a Model Comparison

Luciano Brunetti·Luca Oberto·Marco Sellone·Nosherwan Shoaib·Emil Vremera
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Abstract

This paper describes hardware and software improvements of the INRIM coaxial microcalorimeter together with their outcome on the primary power standard realization in the frequency band 0.05 - 40 GHz. A better temperature and power stabilization turned out to provide an improved signal/noise ratio and a drift reduction in every working condition of the microcalorimeter. The INRIM correction model is also compared to a traditional, but faster, one in terms of measurement uncertainty. Outcomes are presented in form of a 2.92 mm thermoelectric power sensor calibration together with results that show the improved stability and repeatability of the measurement system.

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Luciano Brunetti, Luca Oberto, Marco Sellone, Nosherwan Shoaib, Emil Vremera. 2021-02-11. Improvements on INRIM Coaxial Microcalorimeter and Outcome of a Model Comparison. https://doi.org/10.1109/tim.2015.2406052

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