Abstract
The developed one-dimensional laser beam scanner, driven by a piezoelectric disctype unimorph actuator is presented in this paper. The dynamics of a piezoelectric actuator is analyzed. A magnetorheological fluid (MRF) damper is used to eliminate transient vibrations of the scanner eigen frequencies induced by the stepped driving voltage. Experimental results demonstrate the effectiveness of the MRF damper in residual-vibration reduction in the laser beam scanner.
About this article
Received
21 September 2011
Accepted
04 December 2011
Published
31 December 2011
Keywords
piezoelectric actuator
scanner
dynamics
magnetorheological fluid (MRF)
Copyright © 2011 Vibroengineering
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