A new approach is proposed for the characterization of Agilent 16380A-type four-terminal-pair (4TP) air dielectric capacitance standards, which in the present study ranged from 1 pF to 1000 pF up to 30 MHz. The main objective is to determine all residual parameters of the four-terminal-pair capacitor (C4TP) defined in previous investigations. The key feature of this study is to find all resonance frequencies of C4TP up to 500 MHz using 4TP impedance and admittance values calculated from scattering parameter measurements employing a vector network analyzer. Inductive residual parameters of C4TP are calculated from these resonance frequencies, and capacitive residual parameters are measured by using a 1 kHz capacitance bridge.
Ni x Zn 0.9−x Mn 0.1 Fe 2 O 4 (0.3 ≤ x ≤ 0.7) ferrites were synthesized using the conventional ceramic processing method. A 1 wt% B 2 O 3 was added to initial mixture to inhibit crystal growth and to decrease phase formation temperature. The structural, magnetic, dielectric, and microwave properties of samples have been investigated using X-ray diffraction (XRD), scanning electron microscope (SEM), vibrating sample magnetometer (VSM), and near-field microwave measurements in RF Impedance Analyzer. Magnetization measurements revealed that saturation magnetization of the Mn-substituted Ni-Zn ferrite increases as nickel concentration increases up to x = 0.6. The saturation magnetization has the highest value of 78 emu/g in the Ni 0.6 Zn 0.3 Mn 0.1 Fe 2 O 4 sample. All samples have negligible coercive fields of few oersteds. Microwave measurements revealed that ferromagnetic resonance occurs at around 1.8 GHz and minimum reflection loss attained is less than −20 dB with sample thickness of 10 mm. The observed resonance is due to the domain wall motion. As a result, these materials can be used in microwave absorbers in low-frequency range (i.e., 0.1-3 GHz) as magnetic fillers.
/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions?Contact the NRC Publications Archive team at PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous. This report provides the results of a key comparison, CCEM-K7, organised under the auspices of the Comité Consultatif d'Électricité et Magnétisme (CCEM) and carried out by a group of National Metrology Institutes (NMIs). The measured parameters were a set of ratios of a type of voltage transformer called an Inductive Voltage Divider (IVD). A single custom-made IVD -the Travelling Standard -was designed and used specifically for this comparison.
No abstract
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.