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Proceedings Paper

Electromagnetic and structural FEA modeling of induction actuated scanning mirrors
Author(s): L. C. M. Oliveira; K. M. Ahmida; L. O. S. Ferreira
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Paper Abstract

The prediction of the behavior of the induction actuated scanners is a problem that involves the modeling of different physical domains as structural and electromagnetic. The Finite Element Approach is a highly viable alternative to obtain reliable predictions for its behavior over other available methods as the analytic, or circuit equivalent methods. In this owrk a finite element model for the structural an electromagnetic domains of the induction actuated scanning mirror was presented. To validate these models two experiments were performed, a laser doppler vibrometry of the double-rotor scanner to identify its modes shapes and natural frequencies and a magnetic field mapping of the actuator to obtain the spatial characteristic of the AC and DC magnetic fields generated by the actuator in the device armature region. There is a good agreement between the FEA models and the experimental results.

Paper Details

Date Published: 1 August 2005
PDF: 7 pages
Proc. SPIE 5873, Optical Scanning 2005, (1 August 2005); doi: 10.1117/12.620634
Show Author Affiliations
L. C. M. Oliveira, FEM-UNICAMP (Brazil)
K. M. Ahmida, FEM-UNICAMP (Brazil)
L. O. S. Ferreira, FEM-UNICAMP (Brazil)

Published in SPIE Proceedings Vol. 5873:
Optical Scanning 2005
Stephen F. Sagan; Gerald F. Marshall, Editor(s)

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