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| Titel |
Measuring gravito-magnetic effects by multi ring-laser gyroscope |
| VerfasserIn |
A. D. Di Virgilio, F. Bosi, G. C. Cella, A. Ortolan, A. Porzio, S. Solimeno, M. Cerdonio, J. P. Zendri, M. Allegrini, J. Belfi, N. Beverini, B. Bouhadef, G. Carelli, E. Maccioni, F. Stefani, M. L. Ruggiero, A. Tartaglia, K. U. Schreiber, A. Gebaure, J. P. Wells |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250059426
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| Zusammenfassung |
| We propose an under-ground experiment to detect the general relativistic effects due to the
curvature of space-time around the Earth (de Sitter effect) and to the rotation of the planet
(dragging of the inertial frames or Lense-Thirring effect). It is based on the comparison
between the IERS value of the Earth rotation vector and corresponding measurements
obtained by a tri-axial laser detector of rotation. The proposed detector consists of six large
ring-lasers arranged along three orthogonal axes. In about two years of data taking, the
1% sensitivity required for the measurement of the Lense-Thirring drag can be
reached with square rings of 6 m side, assuming a shot noise limited sensitivity
(20prad-s--Hz–). The multi-gyros system, composed of rings whose planes are
perpendicular to one or the other of three orthogonal axes, can be built in several
ways. The key points of the apparatus and possible locations will be discussed. |
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