Development of a fast and reliable system for the automatic characterization of Giant magnetoimpedance samples

Authors

  • Eduardo Costa da Silva Department of Electrical Engineering / PUC-Rio
  • João Henrique Costa Carvalho Carneiro PEE - COPPE/UFRJ, Universidade Federal do Rio de Janeiro
  • Luiz Antônio Pereira de Gusmão Department of Electrical Engineering / PUC-Rio
  • Carlos Roberto Hall Barbosa Postgraduate Program in Metrology / PUC-Rio
  • Elisabeth Costa Monteiro Postgraduate Program in Metrology / PUC-Rio

DOI:

https://doi.org/10.21014/acta_imeko.v2i1.49

Abstract

Giant Magnetoimpedance (GMI) magnetometers are one of the most recent families of magnetic transducers, being characterized by their potential to achieve high sensitivities. The sensitivity of magnetic transducers is directly related to the sensitivity of its sensor elements. Thus, optimizing the sensitivity of these sensor elements is a critical part of the magnetometers development chain. This paper describes an automatic characterization system designed for the measurement of the electrical impedance of Giant Magneto- Impedance samples. The measurement uncertainties of the system were verified and discussed. The high speed of measurement attained with the use of this system, implemented in LabVIEW, allows for the rapid determination of the optimal operational point of GMI magnetometers.
ACTA IMEKO Vol 2 No 1 (2013)

Downloads

Published

2013-08-16

Issue

Vol. 2 No. 1 (2013)

Section

Research Papers

License

Authors who publish with this journal agree to the following terms:

  • Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  • Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  • Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).