Article (Scientific journals)
Measurement of the speed-of-light perturbation of free-fall absolute gravimeters
ROTHLEITNER, Christian; Niebauer, Tim; FRANCIS, Olivier
2014In Metrologia, 51 (3), p. 9
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Abstract :
[en] We report on a direct measurement of the relativistic Doppler shift with a commercial free-fall absolute gravimeter of the type FG5X. The observed Doppler shift, which is commonly called speed-of-light perturbation, can be well described by the relativistic Doppler formula, where the constant object velocity is replaced by a time-dependent velocity with constant acceleration. The observed speed-of-light perturbation stands in contrast to other publications, which predict a higher frequency shift. It has been measured with a relative uncertainty of 1.1 × 10 −3 .
Disciplines :
Physics
Author, co-author :
ROTHLEITNER, Christian ;  Physikalisch-Technische Bundesanstalt - PTB
Niebauer, Tim;  Micro-g LaCoste Inc.
FRANCIS, Olivier  ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Language :
English
Title :
Measurement of the speed-of-light perturbation of free-fall absolute gravimeters
Publication date :
2014
Journal title :
Metrologia
ISSN :
1681-7575
Publisher :
Institute of Physics, Bristol, United Kingdom
Volume :
51
Issue :
3
Pages :
L9
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 30 January 2014

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