Abstract
1 . 1 NCSR Demokritos, Institute of Advanced Materials, Physicochemical Processes, Nanotechnology and Microsystems, Athens, 15310, Greece. Abstract. A computerized J-H loop tracer for soft magnetic thick films in the audio frequency range is described. It is a system built on a PXI platform combining PXI modules for control signal generation and data acquisition. The physiscal signals are digitized and the respective data strems are processed, presented and recorded in LabVIEW 7.0.
Highlights
There is an interest for the development of high performance nanostructured metallic soft magnetic materials as core inductors for high efficiency DC-DC converters [1], [2]and the development of measurements systems for their characterization
Ac hysteresis loop tracers can be an alternative measuring tool for soft magnetic materials characterization. It can give a satisfactory indication of the coercive field because the widening of the J-H loop area due to the eddy current loss contribution at higher than DC frequencies is not significant especially in resistive soft magnetic materials
This paper describes a computerized J-H loop tracer for the magnetic characterization of soft magnetic strips, ribbons and films with thickness down to a few micrometers in the audio frequency range
Summary
There is an interest for the development of high performance nanostructured metallic soft magnetic materials as core inductors for high efficiency DC-DC converters [1], [2]and the development of measurements systems for their characterization. The very small volume of the samples requires special techniques In these cases closing the magnetic circuit and having flux closure is not required or it is even impossible and open sample measurements are needed [3],[4],[5]. Open sample systems such as Vibrating Sample Magnetometers (VSM), SQUID magnetometers incorporate electromagnets or superconducting coils, the remanent or residual magnetic fields of which are not appropriate to measure the low coercive fields of soft magnetic materials. Ac hysteresis loop tracers can be an alternative measuring tool for soft magnetic materials characterization. This paper describes a computerized J-H loop tracer for the magnetic characterization of soft magnetic strips, ribbons and films with thickness down to a few micrometers in the audio frequency range
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
