Abstract. This paper reports the results from the accurate measurement of the acceleration of gravity g taken at two separate premises in the Polo Scientifico of the University of Firenze (Italy). In these laboratories, two separate experiments aiming at measuring the Newtonian constant and testing the Newtonian law at short distances are in progress. Both experiments require an independent knowledge on the local value of g. The only available datum, pertaining to the italian zero-order gravity network, was taken more than 20 years ago at a distance of more than 60 km from the study site. Gravity measurements were conducted using an FG5 absolute gravimeter, and accompanied by seismic recordings for evaluating the noise condition at the site. The absolute accelerations of gravity at the two laboratories are (980 492 160.6 ± 4.0) μGal and (980 492 048.3 ± 3.0) μGal for the European Laboratory for Non-Linear Spectroscopy (LENS) and Dipartimento di Fisica e Astronomia, respectively. Other than for the two referenced experiments, the data here presented will serve as a benchmark for any future study requiring an accurate knowledge of the absolute value of the acceleration of gravity in the study region.

Measurement of absolute gravity acceleration in Firenze / M. de Angelis; F. Greco; A. Pistorio; N. Poli; M. Prevedelli; G. Saccorotti; F. Sorrentino; G. M. Tino. - In: SOLID EARTH DISCUSSIONS. - ISSN 1869-9537. - STAMPA. - 3:(2011), pp. 43-64. [10.5194/sed-3-43-2011]

Measurement of absolute gravity acceleration in Firenze

DE ANGELIS, MARELLA;POLI, NICOLA;SORRENTINO, FIODOR;TINO, GUGLIELMO MARIA
2011

Abstract

Abstract. This paper reports the results from the accurate measurement of the acceleration of gravity g taken at two separate premises in the Polo Scientifico of the University of Firenze (Italy). In these laboratories, two separate experiments aiming at measuring the Newtonian constant and testing the Newtonian law at short distances are in progress. Both experiments require an independent knowledge on the local value of g. The only available datum, pertaining to the italian zero-order gravity network, was taken more than 20 years ago at a distance of more than 60 km from the study site. Gravity measurements were conducted using an FG5 absolute gravimeter, and accompanied by seismic recordings for evaluating the noise condition at the site. The absolute accelerations of gravity at the two laboratories are (980 492 160.6 ± 4.0) μGal and (980 492 048.3 ± 3.0) μGal for the European Laboratory for Non-Linear Spectroscopy (LENS) and Dipartimento di Fisica e Astronomia, respectively. Other than for the two referenced experiments, the data here presented will serve as a benchmark for any future study requiring an accurate knowledge of the absolute value of the acceleration of gravity in the study region.
2011
3
43
64
M. de Angelis; F. Greco; A. Pistorio; N. Poli; M. Prevedelli; G. Saccorotti; F. Sorrentino; G. M. Tino
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/749325
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