Cart (Loading....) | Create Account
Close category search window
 

Determination of the Heating Effect of Magnetic Fluid in Alternating Magnetic Field

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Beković, M. ; Fac. of Electr. Eng. & Comput. Sci., Univ. of Maribor, Maribor, Slovenia ; Hamler, A.

In this paper, we have investigated the heating power of magnetic fluid, when exposed to a high-frequency magnetic field. Commercially available sample of magnetic fluid has been used and some basic investigation revealed maghemite ¿-Fe2O3 particles with 10.9-nm mean diameter and 10.57% volume concentration. We present an improved experimental system, capable of generating homogeneous magnetic field of amplitudes up to 4 kA/m and frequencies from 10 kHz to 1 MHz. In this paper, none of the heating generation mechanisms (NE¿el or Brownian relaxation or eddy current losses) have been determined solemnly, therefore, the outcome of their activity has been examined by two methods. In case of calorimetric measurements method key parameter is temperature rise while in case of magnetic measurement method key parameters are time-dependent magnetic field strength H and appurtenant magnetic flux density B. Calorimetric measurements are performed and used to determine specific absorption rate curve. Alternatively, this curve has been obtained with the measurement of B(t) and H(t), when a sample is exposed to the same magnetic conditions. Integration of the hysteresis loops has resulted in loss power of the fluid. Proposed magnetic measurement methods proved to be a decent alternative in the process of determining losses.

Published in:

Magnetics, IEEE Transactions on  (Volume:46 ,  Issue: 2 )

Date of Publication:

Feb. 2010

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.