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Proceedings Paper

Design and development of an optical path difference scan mechanism for Fourier transform spectrometers using high-displacement RAINBOW actuators
Author(s): Stephanie A. Wise; Robin C. Hardy; David Edward Dausch
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Paper Abstract

A new piezoelectric drive mechanism has been developed for optical translation in space-based spectrometer systems. The mechanism utilizes a stack of RAINBOW high displacement piezoelectric actuators to move optical components weighing less than 250 grams through a one centimeter travel. The mechanism uses the direct motion of the piezoelectric devices, stacked such that the displacement of the individual RAINBOW actuators is additive. A prototype device has been built which utilizes 21 RAINBOWs to accomplish the necessary travel. The mechanism weighs approximately 0.6 kilograms and uses less than 2 Watts of power at a scanning frequency of 0.5 Hertz, significantly less power than that required by state-of-the-art motor systems.

Paper Details

Date Published: 23 May 1997
PDF: 8 pages
Proc. SPIE 3044, Smart Structures and Materials 1997: Industrial and Commercial Applications of Smart Structures Technologies, (23 May 1997); doi: 10.1117/12.274677
Show Author Affiliations
Stephanie A. Wise, NASA Langley Research Ctr. (United States)
Robin C. Hardy, NASA Langley Research Ctr. (United States)
David Edward Dausch, NASA Langley Research Ctr. (United States)


Published in SPIE Proceedings Vol. 3044:
Smart Structures and Materials 1997: Industrial and Commercial Applications of Smart Structures Technologies
Janet M. Sater, Editor(s)

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