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A Superconducting Gyroscope to Test Einstein's General Theory of Relativity
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A Superconducting Gyroscope to Test Einstein's General Theory of Relativity
A Superconducting Gyroscope to Test Einstein's General Theory of Relativity
CE
C. W. F. Everitt
C. W. F. Everitt
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15 December 1978
conference paper
Published by
SPIE-Intl Soc Optical Eng
in
22nd Annual Technical Symposium
Vol. 157
,
175-188
https://doi.org/10.1117/12.965483
Abstract
In 1960 L.I. Schiff suggested a new test of Einstein&apos's General Theory of Relativity based on measuring the precessions of the spin axes of gyroscopes in orbit around the Earth. Since 1963 a research group in Stanford Physics and Aeronautics Departments has been developing an experiment to measure the two effects calculated by Schiff. The gyro-scope consists of a uniform sphere of fused quartz 38 mm in diameter, coated with super-conductor, electrically suspended and spinning at about 170 Hz in a vacuum. Readout is by magnetic observation of the London moment in the spinning superconductor. The paper describes the proposed flight apparatus and the current state of development of the gyroscope, including techniques for manufacturing and measuring the gyro rotor and housing, generating ultra-low magnetic fields, and mechanizing the readout. The torque analysis, which indicates a limiting gyro drift-rate of 2 x 10-11 deg/hour in space, is briefly summarized.© (1978) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Keywords
RELATIVITY
SUPERCONDUCTORS
GENERAL THEORY OF RELATIVITY
ORBITAL DYNAMICS
GYROSCOPES
PRECESSION
MAGNETISM
MAGNETIC FIELD
PHYSICS
MANUFACTURING
GENERAL RELATIVITY
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Cited by 3 articles