F. Overney
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View article: Broadband Calculable Coaxial Resistors
Broadband Calculable Coaxial Resistors Open
This paper describes a method to model the impedance of a Haddad type resistor over a frequency interval ranging from 10 to 200 MHz, hereafter defined as LF-RF range. To this end, novel resistor standards, of 1 kΩ and 100 Ω, have been desi…
View article: Good practice guide on the graphene-based AC-QHE realization of the farad
Good practice guide on the graphene-based AC-QHE realization of the farad Open
This Good Practice Guide provides information for the realization of the farad from the quantum Hall resistance in graphene devices by using digital impedance bridges. The fabrication and characterization of graphene quantum Hall effect de…
View article: Application of electrochemical impedance spectroscopy to commercial Li-ion cells: A review
Application of electrochemical impedance spectroscopy to commercial Li-ion cells: A review Open
Electrochemical impedance spectroscopy (EIS) is a widely applied non-destructive method of characterisation of Li-ion batteries. Despite its ease of application, there are inherent challenges in ensuring the quality and reproducibility of …
View article: Dual Josephson impedance bridge: towards a universal bridge for impedance metrology
Dual Josephson impedance bridge: towards a universal bridge for impedance metrology Open
This paper presents a full characterization of a Dual Josephson Impedance Bridge (DJIB) at frequencies up to 80 kHz by using the DJIB to compare the best available impedance standards that are (a) directly traceable to the quantum Hall eff…
View article: Load compensation bridge for Josephson arbitrary waveform synthesizers
Load compensation bridge for Josephson arbitrary waveform synthesizers Open
The Josephson arbitrary waveform synthesizer is a quantum-based voltage source that can generate arbitrary waveforms with quantum accuracy. However, these state-of-the-art performances are drastically decreased by the wiring connecting the…
View article: An international comparison of phase angle standards between the novel impedance bridges of CMI, INRIM and METAS
An international comparison of phase angle standards between the novel impedance bridges of CMI, INRIM and METAS Open
We report here the results of a comparison of electrical impedance standards aimed at evaluating four novel digital impedance bridges developed by the national metrology institutes CMI, INRIM and METAS. This comparison, which is the first …