Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Alfauwaz, A."'
Autor:
Buchman, S., Saud, T. S. M. Al, Alfauwaz, A., Byer, R. L., Klupar, P., Lipa, J., Lui, C. Y., Saraf, S., Wang, S., Worden, P.
Charges as small as 1 pC degrade the performance of high precision inertial reference instruments when accumulated on their test masses (TMs). Non-contact charge management systems are required for the most sensitive of these instruments, with the TM
Externí odkaz:
http://arxiv.org/abs/2208.13090
Autor:
Zoellner, Andreas, Tan, Si, Saraf, Shailendhar, Alfauwaz, Abdul, DeBra, Dan, Buchman, Sasha, Lipa, John
We present a method for 3D sub-nanometer displacement measurement using a set of differential optical shadow sensor. It is based on using pairs of collimated beams on opposite sides of an object that are partially blocked by it. Applied to a sphere,
Externí odkaz:
http://arxiv.org/abs/1708.09335
Autor:
Zanoni, Carlo, Alfauwaz, Abdul, Aljadaan, Ahmad, Althubiti, Salman, Balakrishnan, Karthik, Buchman, Sasha, Byer, Robert L., Conklin, John W., Cutler, Grant D., DeBra, Dan, Hultgren, Eric, Lipa, John A., Saraf, Shailendhar, Zoellner, Andreas
A Drag-Free CubeSat mission has been proposed to demonstrate the feasibility of a Gravitational Reference Sensor (GRS) with an optical readout for a 3 units (3U) spacecraft. A purely drag-free object is defined by the absence of all external forces o
Externí odkaz:
http://arxiv.org/abs/1605.05496
Autor:
Lipa, J. A., Buchman, S., Saraf, S., Zhou, J., Alfauwaz, A., Conklin, J., Cutler, G. D., Byer, R. L.
We discuss the potential for a small space mission to perform an advanced Kennedy-Thorndike test of Special Relativity using the large and rapid velocity modulation available in low Earth orbit. An improvement factor of ~100 over present ground resul
Externí odkaz:
http://arxiv.org/abs/1203.3914
Autor:
Balakrishnan, Karthik, Sun, Ke-Xun, Alfauwaz, Abdul, Aljadaan, Ahmad, Almajeed, Mohammed, Alrufaydah, Muflih, Althubiti, Salman, Aljabreen, Homoud, Buchman, Sasha, Byer, Robert L, Conklin, John, DeBra, Daniel, Hanson, John, Hultgren, Eric, Saud, Turki Al, Shimizu, Seiya, Soulage, Michael, Zoellner, Andreas
Precise control over the potential of an electrically isolated proof mass is necessary for the operation of devices such as a Gravitational Reference Sensor (GRS) and satellite missions such as LISA. We show that AlGaN UV LEDs operating at 255 nm are
Externí odkaz:
http://arxiv.org/abs/1202.0585
Autor:
Conklin, J. W., Buchman, S., Aguero, V., Alfauwaz, A., Aljadaan, A., Almajed, M., Altwaijry, H., Al-Saud, T., Balakrishnan, K., Byer, R. L., Bower, K., Costello, B., Cutler, G. D., DeBra, D. B., Faied, D. M., Foster, C., Genova, A. L., Hanson, J., Hooper, K., Hultgren, E., Jaroux, B., Klavins, A., Lantz, B., Lipa, J. A., Palmer, A., Plante, B., Sanchez, H. S., Saraf, S., Schaechter, D., Sherrill, T., Shu, K. -L., Smith, E., Tenerelli, D., Vanbezooijen, R., Vasudevan, G., Williams, S. D., Worden, S. P., Zhou, J., Zoellner, A.
We describe a new space gravitational wave observatory design called LAGRANGE that maintains all important LISA science at about half the cost and with reduced technical risk. It consists of three drag-free spacecraft in the most stable geocentric fo
Externí odkaz:
http://arxiv.org/abs/1111.5264
Akademický článek
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Publikováno v:
Small Satellite Conference
Geodesic missions require precise accelerometers to improve the knowledge of the reference frame used for defining position coordinates, better calculating orbit parameters, and mapping the Earth’s gravitational field. Although space environment di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1459::38e3287dece629b31e17eb663bdea21e
https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=5208&context=smallsat
https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=5208&context=smallsat
Autor:
S Buchman, T S M Al Saud, A Alfauwaz, R l Byer, P Klupar, J Lipa, C Y Lui, S Saraf, S Wang, P Worden
Publikováno v:
Classical and Quantum Gravity. 40:025010
Charges as small as 1 pC degrade the performance of high precision inertial reference instruments when accumulated on their test masses (TMs). Non-contact charge management systems are required for the most sensitive of these instruments, with the TM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8c2d47f974b6150c9ff37b9f00c3020
https://doi.org/10.1088/1361-6382/acaae8
https://doi.org/10.1088/1361-6382/acaae8
Autor:
Shailendhar Saraf, Si Tan, Abdul Alfauwaz, D.B. DeBra, John A. Lipa, Andreas Zoellner, Sasha Buchman
Publikováno v:
Optics express. 25(21)
We present a method for 3D sub-nanometer displacement measurement using a set of differential optical shadow sensor. It is based on using pairs of collimated beams on opposite sides of an object that are partially blocked by it. Applied to a sphere,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cfab11d3ba5a1b11d424167a29bab04
https://pubmed.ncbi.nlm.nih.gov/29041190
https://pubmed.ncbi.nlm.nih.gov/29041190