Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Dz-Hung Gwo"'
Autor:
Dz-Hung Gwo
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 56:1725-1733
An integral operator is defined to simulate the quadrature phase-sensitive detection (PSD) of a time-independent characteristic function (e.g., spectroscopic lineshapes in magnetic resonance), with its dependent variable modulated and scanned during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bc21a19fe8793b0201d10c41aae6f27
https://doi.org/10.1109/tim.2007.903577
https://doi.org/10.1109/tim.2007.903577
Autor:
D.E. Davidson, John A. Lipa, K.A. Bower, S. Wang, E. Romero, Paul Ehrensberger, L. W. Huff, Dz-Hung Gwo, M.T. Sullivan, K. Triebes
Publikováno v:
Advances in Space Research. 32:1401-1405
We describe the design, development, and testing of a cryogenic star-tracking telescope that provides the inertial pointing reference for the Gravity Probe-B gyroscopes, as established by a distant guide star. The telescope has a modified Cassegraini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa6c7ef9437d2c61473f7e1fdb363df9
https://doi.org/10.1016/s0273-1177(03)90353-x
https://doi.org/10.1016/s0273-1177(03)90353-x
Autor:
M. I. Heifetz, Y. M. Xiao, J. P. Turneaure, M. Taber, B. W. Parkinson, R. A. van Patten, J. Grammer, John A. Lipa, H. Dougherty, R.T. Parmley, N. J. Kasdin, D. Bardas, John Mester, G. M. Keiser, Barry Muhlfelder, Alexander S. Silbergleit, J. M. Lockhart, Dz-Hung Gwo, Gregory M. Gutt, M.T. Sullivan, R. H. Vassar, D. Gill, G. Green, P. Zhou, Sasha Buchman, D.B. DeBra, C. W. F. Everitt, S. Wang
Publikováno v:
Advances in Space Research. 32:1387-1396
Gravity Probe B is an experiment to measure the geodetic and frame-dragging precessions, relative to the “fixed” “stars”, of a gyroscope placed in a 650 km altitude polar orbit about the earth. For Einstein's general relativity, the precessio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56213d82cc25e7e72812040e198d4581
https://doi.org/10.1016/s0273-1177(03)90351-6
https://doi.org/10.1016/s0273-1177(03)90351-6
Publikováno v:
Advances in Space Research. 25:1189-1192
We describe the status of the development and testing of the star tracking telescope for Gravity Probe B. The fused quartz telescope with an aperture of 14 cm and 3.8 m effective focal length is attached to the gyroscope housing and continuously poin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf335f420d8a05b0b685b9a4b003bbb6
https://doi.org/10.1016/s0273-1177(99)00985-0
https://doi.org/10.1016/s0273-1177(99)00985-0
Autor:
Murzy D. Jhabvala, L. W. Huff, R. K. Kirschman, John A. Lipa, S. Wang, S. Babu, N. Das, Dz-Hung Gwo, K.A. Bower
Publikováno v:
Le Journal de Physique IV. :Pr3-181
Integrated photodiodes and silicon JFET preamps are used for the optical readout of the Gravity Probe B cryogenic star tracking telescope. The heated circuit assembly is mounted on a thermal isolator so that it can be heated to around 80 K while the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b81ce5e8b7cc86e4e33b99e8409887dc
https://doi.org/10.1051/jp4:1998339
https://doi.org/10.1051/jp4:1998339
Autor:
John A. Lipa, P. F. Schweiger, R. J. Bernier, R. P. Farley, L. W. Huff, D.E. Davidson, E. B. Acworth, Suwen Wang, J. P. Turneaure, K. Triebes, K. A. Bower, John H. Goebel, Dz-Hung Gwo
Publikováno v:
Classical and Quantum Gravity. 32:224008
The Gravity Probe B spacecraft was launched on 20 April 2004 to measure the geodetic and frame-dragging effects predicted by the theory of general relativity. A cryogenic optical telescope was used to establish the inertial reference frame for the me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::418c91635af8cae1fb18b3e8e0b588be
https://doi.org/10.1088/0264-9381/32/22/224008
https://doi.org/10.1088/0264-9381/32/22/224008
Autor:
J. M. Pap, Roy Coulter, Roger K. Ulrich, Dz-Hung Gwo, Jeff Kuhn, A. Jones, Claus Froehlich, R. I. Bush, Sabatino Sofia, Philip H. Scherrer
Publikováno v:
SPIE Proceedings.
Helioseismic and precise solar photometric measurements reveal that the Sun varies globally as a start during the source of an 11 year solar cycle. To understand the physical mechanisms of the magnetic cycle in the solar interior we must learn how to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d400142c99aefaf6e85a3e3c70d27d69
https://doi.org/10.1117/12.330257
https://doi.org/10.1117/12.330257
Autor:
Dz-Hung Gwo
Publikováno v:
SPIE Proceedings.
This paper describes the state-of-the-art precision bonding technique for cryogenic fused-silica optics. It was developed for assembling the fused-quartz Gravity Probe-B science instrument, which will be used to prove or disprove Einstein's Theory of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d58a32b6d9f7a9c21a097dab751db332
https://doi.org/10.1117/12.323731
https://doi.org/10.1117/12.323731
Autor:
Dz-Hung Gwo
Publikováno v:
Space Telescopes and Instruments V.
The Gravity Probe-B cryogenic star-tracking telescope provides the inertial pointing reference, as established by a distant 'fixed' guide star, with milli-arc-second resolution per year for the NASA/Stanford general-relativity gyroscope experiment. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db4e9c5b556740b45ee9e0c3165b6140
https://doi.org/10.1117/12.324446
https://doi.org/10.1117/12.324446
Autor:
Dz-Hung Gwo
Publikováno v:
SPIE Proceedings.
The gravity probe-B cryogenic star-tracking telescope provides the inertial pointing reference, as established by a distant guide star, with milli-arc-second resolution for the NASA/Stanford relatively gyroscope experiment. The star image of the f/27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdd191abedb215683709584458321839
https://doi.org/10.1117/12.278834
https://doi.org/10.1117/12.278834