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16 inch composite material telescope...

Santiago, Freddie.

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16 inch composite material telescope with adaptive optics. Key components: Wavefront reconstructor and vibration testing.

Record Type:	Electronic resources : Monograph/item
Title/Author:	16 inch composite material telescope with adaptive optics. Key components: Wavefront reconstructor and vibration testing./
Author:	Santiago, Freddie.
Description:	117 p.
Notes:	Source: Masters Abstracts International, Volume: 45-03, page: 1519.
Contained By:	Masters Abstracts International45-03.
Subject:	Engineering, Mechanical. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1440692

16 inch composite material telescope with adaptive optics. Key components: Wavefront reconstructor and vibration testing.
Santiago, Freddie.

16 inch composite material telescope with adaptive optics. Key components: Wavefront reconstructor and vibration testing. - 117 p.

Source: Masters Abstracts International, Volume: 45-03, page: 1519.

Thesis (M.S.)--University of Puerto Rico, Mayaguez (Puerto Rico), 2007.

Advances in technology has provided means for astronomical optical telescopes to increase the aperture diameter (more light collecting capability) therefore increasing the resolution. Better resolution allows telescopes to observe more details and fainter objects. But an increase in diameter means an increase in optics size, which needs big and heavy structures to support them. New developments in composite materials have allowed Composite Mirror Application(CMA) in Tucson, Arizona to build a carbon fiber reinforced polymer(CFRP) telescope and optics for the Naval Research Laboratory(NRL), reducing significantly its weight. Other than weight, atmospheric turbulence is the other major problem for an increase in telescope resolution, but technologies such as adaptive optics(AO) can mitigate its effects. AO refers to systems which can adapt to compensate for effects introduced by the atmosphere or another medium. This thesis presents the results of two studies done on this next-generation telescope. First it presents work done on the development of two wavefront reconstructors for AO systems that the new telescope will use. The two reconstructors are based on Finite Difference(FD) and Finite Element(FE) methods, respectively. Second, work done on the characterization of the vibration behavior for this new type of composite material telescope is presented. Preliminary analysis of the data was performed using a new technique for analysing nonlinear systems, the Empirical Mode Decomposition(EMD). Data for both experiments was obtained from a 16 inch composite material telescope prototype and from a non-conventional AO system Shack-Hartmann wavefront sensor.Subjects--Topical Terms:

783786
Engineering, Mechanical.

16 inch composite material telescope with adaptive optics. Key components: Wavefront reconstructor and vibration testing.
LDR:02595nmm 2200277 4500 001 1834688
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008 130610s2007 eng d
035 $a (UMI)AAI1440692
035 $a AAI1440692
040 $a UMI $c UMI
100 1 $a Santiago, Freddie. $3 1923325
245 1 0 $a 16 inch composite material telescope with adaptive optics. Key components: Wavefront reconstructor and vibration testing.
300 $a 117 p.
500 $a Source: Masters Abstracts International, Volume: 45-03, page: 1519.
500 $a Adviser: Mark Chang.
502 $a Thesis (M.S.)--University of Puerto Rico, Mayaguez (Puerto Rico), 2007.
520 $a Advances in technology has provided means for astronomical optical telescopes to increase the aperture diameter (more light collecting capability) therefore increasing the resolution. Better resolution allows telescopes to observe more details and fainter objects. But an increase in diameter means an increase in optics size, which needs big and heavy structures to support them. New developments in composite materials have allowed Composite Mirror Application(CMA) in Tucson, Arizona to build a carbon fiber reinforced polymer(CFRP) telescope and optics for the Naval Research Laboratory(NRL), reducing significantly its weight. Other than weight, atmospheric turbulence is the other major problem for an increase in telescope resolution, but technologies such as adaptive optics(AO) can mitigate its effects. AO refers to systems which can adapt to compensate for effects introduced by the atmosphere or another medium. This thesis presents the results of two studies done on this next-generation telescope. First it presents work done on the development of two wavefront reconstructors for AO systems that the new telescope will use. The two reconstructors are based on Finite Difference(FD) and Finite Element(FE) methods, respectively. Second, work done on the characterization of the vibration behavior for this new type of composite material telescope is presented. Preliminary analysis of the data was performed using a new technique for analysing nonlinear systems, the Empirical Mode Decomposition(EMD). Data for both experiments was obtained from a 16 inch composite material telescope prototype and from a non-conventional AO system Shack-Hartmann wavefront sensor.
590 $a School code: 0553.
650 4 $a Engineering, Mechanical. $3 783786
650 4 $a Physics, Astronomy and Astrophysics. $3 1019521
650 4 $a Physics, Radiation. $3 1019212
690 $a 0548
690 $a 0606
690 $a 0756
710 2 0 $a University of Puerto Rico, Mayaguez (Puerto Rico). $3 1017811
773 0 $t Masters Abstracts International $g 45-03.
790 1 0 $a Chang, Mark, $e advisor
790 $a 0553
791 $a M.S.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1440692