Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Mel Strachan"'
Autor:
Martin S. Whalley, J. P. Emerson, William J. Sutherland, Marc Ferlet, Nagaraja Bezawada, Daniel Tye, Nirmal Bissonauth, Paul Berry, Mélanie Leclerc, Paul Clark, Ruben L. Edeson, John M. Lucas, Tony Richards, Bryan Shaughnessy, Peter Luke, Kim Ward, Nigel Dipper, Mel Strachan, Eli Atad-Ettedgui, Angus Gallie, Gavin Dalton, Martin E. Caldwell, K.M. Burke
The VISTA IR Camera has now completed its detailed design phase and is on schedule for delivery to ESO's Cerro Paranal Observatory in 2006. The camera consists of 16 Raytheon VIRGO 2048×2048 HgCdTe arrays in a sparse focal plane sampling a 1.65 degr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8892b374c79cc3d28307a15c37f5f85e
https://doi.org/10.1117/12.551378
https://doi.org/10.1117/12.551378
Publikováno v:
Journal of Electroceramics. 27:38-44
There is a requirement for a simple and accurate extension sensing method for multilayer piezoelectric actuators for precision micro-positioning applications. This paper explains three different techniques of extension sensing for multilayer piezoele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6dad07e100cc36726c0a82fe7906a61
https://doi.org/10.1007/s10832-011-9647-6
https://doi.org/10.1007/s10832-011-9647-6
Autor:
Robert R. J. Maier, Noah Schwartz, Phil Parr-Burman, Krystian Lukasz Wlodarczyk, Tom Baillie, Mel Strachan, David Hutson, David Atkinson, Katherine J. Kirk, Emma Bryce, Steven Beard, Duncan Paul Hand
Publikováno v:
The Review of scientific instruments. 85(2)
A prototype of a scalable and potentially low-cost stacked array piezoelectric deformable mirror (SA-PDM) with 35 active elements is presented in this paper. This prototype is characterized by a 2 μm maximum actuator stroke, a 1.4 μm mirror sag (me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4700618525706b8071c25880537c7868
https://pubmed.ncbi.nlm.nih.gov/24593375
https://pubmed.ncbi.nlm.nih.gov/24593375
Autor:
Phil Parr-Burman, Noah Schwartz, Katherine J. Kirk, Mel Strachan, Emma Bryce, David Hutson, Erman Uzgur
Publikováno v:
SPIE Proceedings.
Piezoceramic actuators are of increasing interest within the field of adaptive optics through their ability for macro and nano positioning. However, a major drawback for their use is the inherent, non linear hysteresis that is present, which will red
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42c4c91f3e16a7758deccdeacbc7de82
https://doi.org/10.1117/12.917561
https://doi.org/10.1117/12.917561
Autor:
Richard M. Myers, Joanne Hampshire, Sheila Rowan, Erman Uzgur, Katherine J. Kirk, David James Montgomery, Mel Strachan, Kevin Cooke, Shin-Sung Kim, Marielle van Veggel, Martin Strangwood, Matthias Kroedel, J. H. Hough
Publikováno v:
SPIE Proceedings.
We have been developing a series of novel technological solutions to address the challenges posed by the adaptive optic requirements for extremely large telescopes. Our deformable mirror surface material, a compliant from of silicon carbide, offers a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8961ddfb8ba6d205f35edc2f041afcde
https://doi.org/10.1117/12.865331
https://doi.org/10.1117/12.865331
Publikováno v:
Emboding Intelligence in Structures and Integrated Systems.
Ultrasonic techniques have been proposed to determine the extension of piezoelectric multilayer actuators which can be used to construct deformable mirrors for adaptive optics. In the time domain approach, pulse-echo measurements were carried out usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c643a158f35f0134d3707f5d3dfae426
https://doi.org/10.4028/www.scientific.net/ast.56.70
https://doi.org/10.4028/www.scientific.net/ast.56.70
Autor:
Jeremy R. Allington-Smith, Gavin Dalton, Francois Assemat, Simon L. Morris, Chris Evans, Timothy G. Hawarden, Eli Atad-Ettedgui, Rob Ivison, Mel Strachan, Stephen Todd, Isobel Hook, Colin R. Cunningham, Peter Hastings, Suzanne Ramsay Howat
Publikováno v:
SPIE Proceedings.
One of the highlights of the European ELT Science Case book is the study of resolved stellar populations, potentially out to the Virgo Cluster of galaxies. A European ELT would enable such studies in a wide range of unexplored distant environments, i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba70903832af30d4001cc3b673c087a7
https://doi.org/10.1117/12.671086
https://doi.org/10.1117/12.671086
Autor:
Michael Redfern, Andreas Quirrenbach, Gil Moretto, Bernhard R. Brandl, Luca Pasquini, Gavin Dalton, Eli Atad-Ettadgui, William R. F. Dent, Eric Prieto, Sandro D'Odorico, Mel Strachan, Oliver Ryan, Ian Egan, Roland Bacon, Francois Hammer, Christophe Verinaud, Rainer Lenzen, I. Montilla, Florian Kerber, Simon L. Morris, Chris Evans, M. Kasper, Jean-Gabriel Cuby, P. Jagourel, Colin Cunningham, Norbert Hubin
Publikováno v:
Proceedings of the SPIE
Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, May 2006, Orlando, Florida, United States. ⟨10.1117/12.671274⟩
Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series
Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, May 2006, Orlando, Florida, United States. ⟨10.1117/12.671274⟩
International audience; We report on the development of instrument concepts for a European ELT, expanding on studies carried out as part of the ESO OWL concept. A range of instruments were chosen to demonstrate how an ELT could meet or approach the g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ebef1e276ada6275da2d6cc13b97b08a
https://hal.science/hal-03734400
https://hal.science/hal-03734400
Autor:
Mel Strachan, Stephen Todd, James L. Elliot, Christopher C. Davis, Russell Kackley, Matthew Rippa, S. K. Leggett, Maureen A. Ellis, David C. Gostick, Suzanne Ramsay Howat, Alastair J. Borrowman
Publikováno v:
SPIE Proceedings.
UIST is a facility class near-infrared instrument recently commissioned at the UK Infrared Telescope (UKIRT). UIST provides a comprehensive imaging and spectroscopic facility with spatial resolution limited only by the delivered tip-tilt corrected se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8de255442829391c4fbb73a1130dd18e
https://doi.org/10.1117/12.551673
https://doi.org/10.1117/12.551673
Autor:
Mel Strachan, David C. Gostick, Suzanne K. Ramsay-Howat, John W. Harris, Ken Laidlaw, Ken Wilson, Norrie Kidd
Publikováno v:
SPIE Proceedings.
High-quality, efficient calibration instruments is a pre- requisite for the modern observatory. Each of the Gemini telescopes will be equipped with identical facility calibration units (GCALs) designed to provide wavelength and flat-field calibration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e1726e45144da434c393398df1868c6
https://doi.org/10.1117/12.395453
https://doi.org/10.1117/12.395453