AN AUTOMATED-SYSTEM FOR MEASURING THE COMPLEX IMPEDANCE AND ITS RELAXATION IN SOFT-MAGNETIC MATERIALS

Authors
SINNECKER JP KNOBEL M SARTORELLI ML SCHONMAKER J SILVA FCS
Citation
Jp. Sinnecker et al., AN AUTOMATED-SYSTEM FOR MEASURING THE COMPLEX IMPEDANCE AND ITS RELAXATION IN SOFT-MAGNETIC MATERIALS, Journal de physique. IV, 8(P2), 1998, pp. 665-668
Citations number
6
Categorie Soggetti
Physics
Journal title
Journal de physique. IV → ACNP
ISSN journal
11554339
Volume
8
Issue
P2
Year of publication
1998
Pages
665 - 668
Database
ISI
SICI code
1155-4339(1998)8:P2<665:AAFMTC>2.0.ZU;2-#
Abstract
A fully automated system, designed to measure both components or the i mpedance as functions of applied field (up to 130 Oe), current intensi ty (up to 20 mA) and frequency (up to 1 MHz), is presented. Also, this apparatus allows impedance relaxation to be recorded. High sensitivit y is achieved by using lock-in technique, and weak relative changes of the impedance, down to an order or 0.1%, can be observed.