Advanced Ring Laser Instrument - GINGERINO: Precision Earth Rotation Measurement

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The GINGERINO project utilizes a groundbreaking ring laser instrument for precise measurement of Earth's rotation variations. It offers advantages in local measurements compared to space-based methods, aiding in geophysics and fundamental physics research. Operational since May 2017, GINGERINO boasts high sensitivity and long-term functionality, delivering accurate data with minimal downtime.

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  1. GINGERINO_OA Pisa/(Roma INGV, CNT) 29/06/18 Pisa, GV Call presentation

  2. 29/06/18 Pisa, GV Call presentation

  3. LARGE FRAME RING LASER: A REALLY INTERDISPLINAR INSTRUMENT GINGER: Local measurement of the Lense-Thirring effect 1%. Main difference with space measurement: it is not an averaged measurement, and the map of the gravitational field is not required. The only instrument which is expected to have the capability to measure the fast variation of the Earth angular velocity Change on the orientation of the Earth axis (it id directly linked to the Earth axis) Tides and polar motion Rotational component for seismology LoD Tectonic plaque motion? Ring laser are widely used for navigation of submarine etc. 29/06/18 Pisa, GV Call presentation

  4. INERTIAL ANGULAR ROTATION MEASUREMENT GINGERINO 14.4m2 OFG Small ring laser ROMY 62.3m2 G-Pisa 5.4m2 G (Wettzell) 16m2 Aircraft Navigation Submarine Navigation 10-4 10-6 10-8 10-10 10-12 10-14 rad/s General Relativity Seismics Earth Tides Earth Rotation Rate Fluctuations of Earth rotation Atom gyros Tectonic plaque Impossible to distinguish among geophysics and fundamental physics signals 07/06/18 A. DI VIRGILIO, WGR Wuhan, 6-9 June 2018

  5. GINGERINO e il primo ring laser al mondo basato su un semplice modello meccanico che funziona su tempi lunghi e con alta sensibilita (duty cycle > 95% e sensibilita ~ 10-10 rad/s) Belfi J, Beverini N, Carelli G, Di Virgilio A, Giacomelli U, Maccioni E, Stefani F, Simonelli A and Terreni G 2018 Applied Optics 57 1 URL https://doi.org/10.1364/AO.99.099999 6 referee 29/06/18 Pisa, GV Call presentation

  6. GINGERINO is taking data since May 2017, a few days have been lost Operational since May 2017, new set of mirrors installed, and it is back operative Belfi J, Beverini N, Carelli G, Di Virgilio A, Giacomelli U, Maccioni E, Stefani F, Simonelli A and Terreni G 2018 Applied Optics 57 1 URL https://doi.org/10.1364/AO.99.099999 First 90 days: Less than 2% of the time GINGERINO was in split mode Overall duty cycle > 95% 29/06/18 Pisa, GV Call presentation

  7. Residuals after laser noise subtraction rad Analysis of 90 days operation of the gyroscope GINGERINO Applied Optics 29/06/18 Pisa, GV Call presentation

  8. Not yet good enough to see polar motion! 29/06/18 Pisa, GV Call presentation

  9. 29/06/18 Pisa, GV Call presentation

  10. 29/06/18 Pisa, GV Call presentation

  11. 29/06/18 Pisa, GV Call presentation

  12. 29/06/18 Pisa, GV Call presentation

  13. 29/06/18 Pisa, GV Call presentation

  14. ROTATIONAL SEISMOLOGY IS FINALLY A REALITY 29/06/18 Pisa, GV Call presentation

  15. 29/06/18 Pisa, GV Call presentation

  16. 29/06/18 Pisa, GV Call presentation

  17. 29/06/18 Pisa, GV Call presentation

  18. Earthquake M8 Mexico, September 2017 29/06/18 Pisa, GV Call presentation

  19. BACK IN OPERATION AFTER THE CHANGE OF MIRRORS In May 2018 a new set of (better) mirrors have been installed Sensitivity is now even higher we are trying to see if geodetic signals will be accessible (polar motion and chandler wobbler) Seismology is always feasible 29/06/18 Pisa, GV Call presentation

  20. GEOSCIENCE USES OPEN SOURCE DATA 29/06/18 Pisa, GV Call presentation

  21. 29/06/18 Pisa, GV Call presentation

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  26. 29/06/18 Pisa, GV Call presentation

  27. WP WP1 Normal Operation of GINGERINO Francesco Fuso, Enrico Maccioni and Fabio Stafano WP2 Analysis pipeline and data quality A. Di Virgilio I. Ferrante + TD WP3 Data acquisition and EIDA data bank integration A. Govoni CNT, INGV P. Danacek, G. De Luca and G. Romeo 29/06/18 Pisa, GV Call presentation

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