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Proceedings Paper

A fiber positioner robot for the Gran Telescopio Canarias
Author(s): M. Azzaro; S. Becerril; C. Vilar; X. Arrillaga; J. Sánchez; I. Morales; M. A. Carrera; F. Prada
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Paper Abstract

Fiber-fed spectrographs dedicated to observing massive portions of the sky are increasingly being more demanded within the astronomical community. For all the fiber-fed instruments, the primordial and common problem is the positioning of the fiber ends, which must match the position of the objects of a target field on the sky. Amongst the different approaches found in the state of the art, actuator arrays are one of the best. Indeed, an actuator array is able to position all the fiber heads simultaneously, thus making the reconfiguration time extremely short and the instrument efficiency high. The SIDE group* at the Instituto de Astrofisica de Andalucia, together with the industrial company AVS and the University of Barcelona, has been developing an actuator suitable for a large and scalable array. A real-scale prototype has been built and tested in order to validate its innovative design concept, as well as to verify the fulfillment of the mechanical requirements. The present article describes both the concept design and the test procedures and conditions. The main results are shown and a full justification of the validity of the proposed concept is provided.

Paper Details

Date Published: 20 July 2010
PDF: 16 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 773544 (20 July 2010); doi: 10.1117/12.856254
Show Author Affiliations
M. Azzaro, Instituto de Astrofísica de Andalucía, CSIC (Spain)
S. Becerril, Instituto de Astrofísica de Andalucía, CSIC (Spain)
C. Vilar, Univ. de Barcelona (Spain)
X. Arrillaga, Added Value Solutions (Spain)
J. Sánchez, Instituto de Astrofísica de Andalucía, CSIC (Spain)
I. Morales, Instituto de Astrofísica de Andalucía, CSIC (Spain)
M. A. Carrera, Added Value Solutions (Spain)
F. Prada, Instituto de Astrofísica de Andalucía, CSIC (Spain)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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