Absolute control of the scale factor in GP2 laser gyroscope: Toward a ground based detector of the lense-thirring effect2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC)
- Belfi, Jacopo
- Beverini, Nicolo'
- Calamai, Massimo
- Carelli, Giorgio
- Maccioni, Enrico
- A., Di Virgilio
- R., Santagata
- A., Porzio
- D., Cuccato
- A., Ortolan
- S., Solimeno
Publication date
January 2013
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
The sensitivity achieved by large laser gyroscopes opens the perspective of observing in a ground laboratories very thin relativistic effect related to the Earth rotating mass (gravitomagnetic effect or Lense-Thirring effect). The required accuracy asks for a strict control of the ring cavity geometry. Here we present a control procedure that can be applied in order to solve this task
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