A space-based superconducting microwave oscillator clock

被引：21

作者：

Buchman, S ^{[1
]}

Dong, M ^{[1
]}

Moeur, W ^{[1
]}

Wang, S ^{[1
]}

Lipa, JA ^{[1
]}

Turneaure, JP ^{[1
]}

机构：

[1] Stanford Univ, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA

来源：

FUNDAMENTAL PHYSICS IN SPACE | 2000年 / 25卷 / 06期

关键词：

D O I：

10.1016/S0273-1177(99)00996-5

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Superconducting Cavity Stabilized Oscillators, SCSO, have produced the most stable clocks to date, achieving an Alien variance of 3x10(-16) for integration times between 10(2) and 10(3) seconds. Cavity frequency variations are mainly caused by acceleration effects due to gravity and vibrations, temperature variations, and fluctuations in the energy stored in the cavity. We describe the status of a project aimed at building an improved cavity system suitable for use on the International Space Station, ISS. Primary experimental applications include the measurement, in conjunction with other types of clocks, of the dependence of fundamental constants on the gravitational potential, gravitational redshift measurements, and the measurement of the anisotropy of the velocity of light. A major secondary application is as a flywheel for the atomic clocks co-located on the ISS. (C) 2000 COSPAR. Published by Elsevier Science Ltd.

引用

页码：1251 / 1254

页数：4

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