Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Jean-Noel Aubrun"'
Autor:
Alain C. Carrier, Jean-Noel Aubrun
Publikováno v:
IFAC Proceedings Volumes. 25:409-415
New frequency response measurement procedures, on-line modal tuning techniques, and on-line modal identification algorithms are developed and applied to the modal identification of the Advanced Structures/Controls Integrated Experiment (ASCIE), a gen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c11c1673594fb00a8535306869b18c8
https://doi.org/10.1016/s1474-6670(17)49680-7
https://doi.org/10.1016/s1474-6670(17)49680-7
Autor:
John Thatcher, C. Tischhauser, David M. Stubbs, Vassilis Zarifis, Peter D. Dean, Robert Benson, Gregg Swietek, Erich de Leon, Sheldon Russell, Gene Cross, Paul Schweiger, Mel Ni, Richard L. Kendrick, Jean-Noel Aubrun, John Farley, David Brace, Kris Lauraitis, John Camp, Ramji Digumerthi, Robert L. Martin, Larry Burriesci, Dennis Roseman, Richard J. Stone, Ken Matosian, Bruce J. Herman, A. Duncan, Alice L. Palmer, Kenneth Lorell, Howard H. Hamilton, Ray Bell, John Breakwell, Tom Muench, Kurt W. Gleichman, Jack S. Smith, Andrew D. Green, Rick Paxman, Eric Byler, Larry Benson, Rob Sigler, Peter Cuneo, Harvey Wong
Publikováno v:
Applied optics. 45(18)
A nine-aperture, wide-field Fizeau imaging telescope has been built at the Lockheed-Martin Advanced Technology Center. The telescope consists of nine, 125 mm diameter collector telescopes coherently phased and combined to form a diffraction-limited i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cee3e3da496b31bec78944382b51a760
https://pubmed.ncbi.nlm.nih.gov/16778931
https://pubmed.ncbi.nlm.nih.gov/16778931
Publikováno v:
SPIE Proceedings.
The Thirty Meter Telescope (TMT) is a collaborative project between the California Institute of Technology (CIT), the University of California (UC), the Association of Universities for Research in Astronomy (AURA), and the Association of Canadian Uni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bf5e8e1f22a58bddefbf260d127c70a
https://doi.org/10.1117/12.672917
https://doi.org/10.1117/12.672917
Autor:
Alain C. Carrier, Craig L. Hom, Kenneth R. Lorell, Roger Mihara, Jean-Noel Aubrun, Patrick Champagne
Publikováno v:
SPIE Proceedings.
The Lockheed Martin/Advanced Technology Center (LM/ATC) developed a lightweight, compact, high-load capable and yet high precision latch for use on deployable optical systems such as the Next Generation Space Telescope (NGST). The design allows preci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bd649d9ed19c48e7bd9c0792aeaf615
https://doi.org/10.1117/12.461549
https://doi.org/10.1117/12.461549
Publikováno v:
Future Giant Telescopes.
In order for the California Extremely Large Telescope (CELT) to achieve the required optical performance, each of its 1000 primary mirror segments must be positioned relative to adjacent segments with nanometer-level accuracy. This can be accomplishe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d540daed81ce2a29e910d29fa11dda6b
https://doi.org/10.1117/12.459974
https://doi.org/10.1117/12.459974
Autor:
Neal Didriksen, Robert R. Clappier, Victor Nikolaskin, Roger Mihara, Lawrence Lesyna, Pat Champagne, Charles Lim Yee, Jean-Noel Aubrun, Ramji Digumarthi, Kenneth R. Lorell
Publikováno v:
SPIE Proceedings.
An engineering test unit Fabry-Perot interferometer has been designed and built to operate in the 1.5-1.7 um regime from room temperature to 30 K°. The Fabry-Perot interferometer is tuned by controlling the gap spacing between the two highly reflect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca58bbd7d3ae4e088accc2049dbf4839
https://doi.org/10.1117/12.452332
https://doi.org/10.1117/12.452332
Publikováno v:
SPIE Proceedings.
This paper describes the testing and performance evaluation of the Gemini secondary mirror control system. The mechanism and control system have demanding requirements for dynamic performance, precision position control throughout the mirror chop cyc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fac8df58b64a198f80fc4be22209b5e0
https://doi.org/10.1117/12.319279
https://doi.org/10.1117/12.319279
Autor:
Gregory J. Feher, Jean-Noel Aubrun, Paul J. Reshatoff, Donald F. Zacharie, Ernesto O. Perez, Kenneth R. Lorell
Publikováno v:
SPIE Proceedings.
The Keck 2 ten meter telescope will utilize an advanced chopping secondary mirror in order to enhance observations in the infrared. The Infrared Fast Steering Mirror (IFSM) can execute a square-wave chop at frequencies as high as 25 Hz with an accura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33aca2bdff5063265b39538c36dc0144
https://doi.org/10.1117/12.319278
https://doi.org/10.1117/12.319278
Autor:
Jean-Noel Aubrun, Alain C. Carrier
Publikováno v:
Adaptive Optics in Astronomy.
This paper reports on experiments in modeling and control of the Advanced Structures/Controls Integrated Experiment.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0021e107530606a53cd273e5bb416c5d
https://doi.org/10.1117/12.176123
https://doi.org/10.1117/12.176123
Autor:
Paul J. Reshatoff, Donald F. Zacharie, Kenneth R. Lorell, Jean-Noel Aubrun, Gregory J. Feher, Ernesto O. Perez
Publikováno v:
Adaptive Optics in Astronomy.
In mid 1992 an actively controlled infrared (IR) reflecting secondary mirror was installed on the W.M. Keck Ten Meter Telescope, currently the world's largest telescope. This 0.5 m gold plated beryllium mirror is capable of extremely precise motions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cb94abd692511367d984aed9e8fa81e
https://doi.org/10.1117/12.176117
https://doi.org/10.1117/12.176117