Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Zack Hatfield"'
Autor:
Zack Hatfield, Alex St. Peter, Christian Davila-Peralta, Joel Berkson, Daewook Kim, Justin Hyatt
Publikováno v:
Nanomanufacturing and Metrology. 5:327-335
Future large-scale radio telescope observatories, such as the next-generation Very Large Array, involve extremely large collection areas. These collection areas are divided into smaller shaped panels, which typically require their own unique molds to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d072639592488467e6d274e45c25be55
https://doi.org/10.1007/s41871-022-00169-z
https://doi.org/10.1007/s41871-022-00169-z
Autor:
Joel Berkson, Naomi Nguyen, Selvaraj Dharmalingam, Dae Woo Kim, Justin Hyatt, D. Anish Roshi, Michael P. Sulzer, Zack Hatfield
Publikováno v:
International Optical Design Conference 2021.
A recently proposed concept for the Next Generation Arecibo Telescope involves an array of tightly packed small dishes [1]. In support, we present mitigation methods for grating lobe effects inherent in regularly spaced aperture synthesis.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c7c115f34b4b38111f88f4dc29c4c80
https://doi.org/10.1117/12.2603637
https://doi.org/10.1117/12.2603637
Autor:
Naomi Nguyen, Joel Berkson, Wyatt Ellis, Alex St. Peter, Dae Wook Kim, Justin Hyatt, Emili Rodriguez, Christian Davila-Peralta, Zack Hatfield, Bailey S. Allen
Publikováno v:
2021 IEEE Aerospace Conference (50100).
Scientists of the Steward Observatory and Wyant College of Optical Sciences at the University of Arizona created a highly energy efficient adaptable method of forming precision freeform metal panels utilizing the combined effects of induction heating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ba13fb088bd32595985b5b51182aa53
https://doi.org/10.1109/aero50100.2021.9438425
https://doi.org/10.1109/aero50100.2021.9438425
Autor:
Joel Berkson, Zack Hatfield, Alex St. Peter, Henry Quach, Emily Rodriguez, Naomi Nguyen, Wyatt Ellis, Kevin Derby, Christian Davila-Peralta, Justin Hyatt, Dae Wook Kim
Publikováno v:
OSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT).
Large, slow freeform optics are challenging to measure, especially if their surfaces are non-specular in the visible; however, using deflectometry with a thermal source allows measurement of both rough and freeform surfaces to high precision.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f78027f46848e698455f01f68615e667
https://doi.org/10.1364/freeform.2021.jtu2b.3
https://doi.org/10.1364/freeform.2021.jtu2b.3
Autor:
Zack Hatfield, Bailey S. Allen, Alex St. Peter, Naomi Nguyen, Joel Berkson, Christian Davila-Peralta, E. E. Rodriguez, Justin Hyatt, Dae Wook Kim, Wyatt Ellis
Publikováno v:
OSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT).
University of Arizona scientists have developed an efficient method of thermoforming panels for millimeter wave freeform antenna applications. We’ve implemented stereo fringe projection metrology to characterize these panels to 40µm RMS accuracy.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1dadbd969f57c9d926b9299e648e13c
https://doi.org/10.1364/freeform.2021.jtu2b.2
https://doi.org/10.1364/freeform.2021.jtu2b.2
Autor:
Zack Hatfield, Christian Davila-Peralta, Alex St. Peter, Joel Berkson, Emily Rodriguez, Naomi Nguyen, Wyatt Ellis, Heejoo Choi, Dae Wook Kim, Justin Hyatt
Publikováno v:
OSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT).
State of the art millimeter wave telescope panels require surface treatment to control reflective solar radiation scattering. Here we compare different treatment regimes using metrology, simulation, and experimentation to identify optimal processes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7847e99d3b050a47968ebdb7ce55907
https://doi.org/10.1364/oft.2021.ow2b.5
https://doi.org/10.1364/oft.2021.ow2b.5
Autor:
Zack Hatfield, Christian Davila-Peralta, Joel Berkson, Alex St. Peter, Emily Rodriguez, Naomi Nguyen, Bailey S. Allen, Wyatt Ellis, Dae Wook Kim, Justin Hyatt
Publikováno v:
OSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT).
Researchers at the University of Arizona have developed a technology for precision radio telescope panel fabrication involving an adjustable mold-based thermoforming process. The motivation, technology, and experimental results will be presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69b5f9ec6851fc7cc9fa336bbb69d20a
https://doi.org/10.1364/oft.2021.ow2b.4
https://doi.org/10.1364/oft.2021.ow2b.4