Computer Science – Performance
Scientific paper
Aug 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3352..344s&link_type=abstract
Proc. SPIE Vol. 3352, p. 344-347, Advanced Technology Optical/IR Telescopes VI, Larry M. Stepp; Ed.
Computer Science
Performance
Scientific paper
Optical testing of the 2.1-m telescope in San Pedro Martir, Observatorio Astronomico Nacional de Mexico, by the methods of wavefront curvature sensing and bi-Ronchi analysis, has shown that the telescope suffered of large amounts of astigmatism. We identified these as due to improper primary mirror support and developed an active control system to correct for it. The number and position of the actuators were decided in accordance to the flexural modes that needed to be corrected, resulting in a system of 18 pressure controlled pneumatic actuators, with an outer loop that verifies the load at three hard points. A PID algorithm and matrix inversion are fundamental parts of this outer loop, that guarantees that the M1 mirror is tilted as a rigid body to maintain it properly aligned. The successful performance of the system to correct low order aberrations is reported.
Carrasco C.
Carrillo M.
Cordero Alberto
Cuevas Salvador
García Beatriz
No associations
LandOfFree
Performance of the active M1 cell for the 2.1-m telescope of the Observatorio Astronomico Nacional de Mexico 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 Performance of the active M1 cell for the 2.1-m telescope of the Observatorio Astronomico Nacional de Mexico, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Performance of the active M1 cell for the 2.1-m telescope of the Observatorio Astronomico Nacional de Mexico will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1538765