Vito C. Fernicola

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A novel microwave whispering gallery mode (WGM) resonator based on a spherical sapphire crystal was developed at INRIM and its use as a thermometer was tested. The temperature dependence of the WGM frequencies was studied and the most promising resonance near to 13.6 GHz, with a loaded quality factor as large as 82 000, was carefully investigated. Its(More)
Nowadays, sapphire resonator thermometer is a novel field starts from 2007 at NIST [1] and lots of work were done then by Strouse [1] and Yu et al. [2], [3] based on spherical and cylindrical sapphire. In order to make the thermometer more and more compact, sapphire rod was studied. Investigations on potential perturbations were firstly studied before the(More)
A sapphire rod resonator was presented here and the dimension optimization for the cavity was implemented based on the sapphire rod which is 6 mm in diameter and 30 mm in length. For a resonator the Q factor, coupling strength, energy portion on the sapphire were the most important factors. This paper will mainly focus on the analysis of these three(More)
This paper presents a state-of-the-art whispering gallery mode (WGM) thermometer system, which could replace platinum resistance thermometers currently used in many industrial applications, thus overcoming some of their well-known limitations and their potential for providing lower measurement uncertainty. The temperature-sensing element is a(More)
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