Measurement accuracy in control of segmented-mirror telescopes

Details Measurement accuracy in control of segmented-mirror telescopes Measurement accuracy in control of segmented-mirror telescopes

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apopt..43..608m&link_type=abstract

Applied Optics, Volume 43, Issue 3, pp. 608-615 (2004).

Physics

Optics

4

Telescopes, Mirrors, Optical Design Techniques

Scientific paper

Design concepts for future large optical telescopes have highly segmented primary mirrors, with the out-of-plane degrees of freedom actively controlled. We estimate the contribution to errors in controlling the primary mirror that results from sensor noise and, in particular, compare mechanical measurements of relative segment motion with optical wave-front information. Data from the Keck telescopes are used to obtain realistic estimates of the achievable noise due to mechanical sensors. On the basis of these estimates, mechanical sensors will be more accurate than wave-front information for any of the telescope design concepts currently under consideration, and therefore supplemental wave-front sensors are not required for real-time figure control. Furthermore, control system errors due to sensor noise will not significantly degrade either seeing-limited or diffraction-limited observations.

Affiliated with

Also associated with

No associations

Rating

Measurement accuracy in control of segmented-mirror telescopes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Measurement accuracy in control of segmented-mirror telescopes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement accuracy in control of segmented-mirror telescopes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1839732