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Proceedings Paper

Hardware Development For Gravity Probe-B
Author(s): D. Bardas; W. S. Cheung; D. Gill; R. Hacker; G. M. Keiser; J. A. Lipa; M. Macgirvin; T. Saldinger; J. P. Turneaure; M. S. Wooding; J. M. Lockhart
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Paper Abstract

Gravity Probe-B (GP-B), also known as the Stanford Relativity Gyroscope Experiment, will test two fundamental predictions of Einstein's General Theory of Relativity by precise measurement of the precessions of nearly perfect gyroscopes in earth orbit. This endeavor will be the result of over 25 years of research and embodies state-of-the-art technologies in many fields including, among others, gyroscope fabrication and readout, cryogenics, super-conductivity, magnetic shielding, precision optics and alignment methods, and satellite control systems. These technologies are necessary to enable measurement of the predicted precession rates to the milli-arcsecond/year level and to reduce to "near zero" all non-General Relativistic torques on the gyroscopes. This paper, the first of six on GP-B at this conference, will provide a brief overview of the experiment followed by descriptions of several specific hardware items with highlights on progress to date and plans for future development and tests.

Paper Details

Date Published: 18 July 1986
PDF: 18 pages
Proc. SPIE 0619, Cryogenic Optical Systems and Instruments II, (18 July 1986); doi: 10.1117/12.966637
Show Author Affiliations
D. Bardas, Stanford University (United States)
W. S. Cheung, Stanford University (United States)
D. Gill, Stanford University (United States)
R. Hacker, Stanford University (United States)
G. M. Keiser, Stanford University (United States)
J. A. Lipa, Stanford University (United States)
M. Macgirvin, Stanford University (United States)
T. Saldinger, Stanford University (United States)
J. P. Turneaure, Stanford University (United States)
M. S. Wooding, Stanford University (United States)
J. M. Lockhart, Stanford University & San Francisco State University (United States)


Published in SPIE Proceedings Vol. 0619:
Cryogenic Optical Systems and Instruments II
Ramsey K. Melugin, Editor(s)

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