Metrology System for a Large, Somewhat Flexible Telescope

TBMG-10830

01/01/2009

Abstract
Content

A proposed metrology system would be incorporated into a proposed telescope that would include focusing optics on a rigid bench connected via a deploy- able mast to another rigid bench holding a focal-plane array of photon counting photodetectors. Deformations of the deployable mast would give rise to optical misalignments that would alter the directions (and, hence, locations) of incidence of photons on the focal plane. The metrology system would measure the relative displacement of the focusing-optics bench and the focal-plane array bench. The measurement data would be used in post-processing of the digitized photodetector outputs to compensate for the mast-deformation-induced changes in the locations of incidence of photons on the focal plane, thereby making it possible to determine the original directions of incidence of photons with greater accuracy.

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Citation
"Metrology System for a Large, Somewhat Flexible Telescope," Mobility Engineering, January 1, 2009.
Additional Details
Publisher
Published
Jan 1, 2009
Product Code
TBMG-10830
Content Type
Magazine Article
Language
English