Share Email Print
cover

Proceedings Paper

Active-passive correction of wind buffeting deformation on large thin meniscus mirrors
Author(s): Javier Castro; Brian Mack; Antonio Cruz-Lopez; Juan Paris P. Gonzalez; Carlos Martin-Diaz; German R. Pescador; Luis Fernando Rodriguez-Ramos; Vicente Sanchez de la Rosa; Nicolas A. Sosa; Mark R. Williams
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

This paper presents a solution to correct wind induced deformation on a 8.0 m thin meniscus mirror supported by a system of astatic active supports. The correction scheme is based on an active correction using the force actuators which support the mirror, and a passive rate dependent coupling of the mirror to the cell. The paper identifies the fundamental design parameters of the passive correction system and the active controller, and shows its wind attenuation capabilities. A 3D simulation verifies the good performance of the system for wind velocities of about 45 km/h. Furthermore, the influence of cell deflection on the mirror due to the passive coupling system is shown.

Paper Details

Date Published: 1 June 1994
PDF: 13 pages
Proc. SPIE 2199, Advanced Technology Optical Telescopes V, (1 June 1994); doi: 10.1117/12.176175
Show Author Affiliations
Javier Castro, I. Astrofisica Canarias (Spain)
Brian Mack, Instituto de Astrofisica de Canarias (Spain)
Antonio Cruz-Lopez, Instituto de Astrofisica de Canarias (Spain)
Juan Paris P. Gonzalez, Instituto de Astrofisica de Canarias (Spain)
Carlos Martin-Diaz, Instituto de Astrofisica de Canarias (Spain)
German R. Pescador, Instituto de Astrofisica de Canarias (Spain)
Luis Fernando Rodriguez-Ramos, Instituto de Astrofisica de Canarias (Spain)
Vicente Sanchez de la Rosa, Instituto de Astrofisica de Canarias (Spain)
Nicolas A. Sosa, Instituto de Astrofisica de Canarias (Spain)
Mark R. Williams, Instituto de Astrofisica de Canarias (Spain)


Published in SPIE Proceedings Vol. 2199:
Advanced Technology Optical Telescopes V
Larry M. Stepp, Editor(s)

© SPIE. Terms of Use
Back to Top