Measurement of the variation of Young modulus on internal stress in ferromagnetics by speckle interferometry
- Department of Applied Physics to Natural Resources (FARN), School of Mining Engineering, Universidad Politécnica de Madrid
A heterodyne speckle interferometric system is employed to measure the dependence of E (Young modulus) on stress in a magnetic sample. That elastic modulus is obtained by mean of the first natural frequency of a cylindrical bar placed in a solenoid for both, saturated and demagnetized states. The experimental non-contact set-up allows to carry out the measurements of the vibration of the material in a wide bandwidth with a high precission. The method has general validity. However, different samples of nickel are used, being the results in agreement with the theoretical calculus.
Manuscript not yet submitted.
The submission phase is currently closed.
@inproceedings{dgao106-p22,
title = {Measurement of the variation of Young modulus on internal stress in ferromagnetics by speckle interferometry},
author = {José Manuel Chicharro, Ana Bayón, Felix Salazar},
booktitle = {DGaO-Proceedings, 106. Jahrestagung},
year = {2005},
publisher = {Deutsche Gesellschaft für angewandte Optik e.V.},
issn = {1614-8436},
note = {Poster P22}
}
106. Annual Conference of the DGaO · Wrocław · 2005