The Gravimetry Group of the Institute of Metrology “G. Colonnetti” (IMGC-CNR), nowadays National Institute of Research in Metrology (INRIM), developed a new version of a transportable absolute gravimeter, the IMGC-02. The instrument presents several improvements mainly concerning the transportability, the measurement automation and the user-interface programs. According to the ISO-GUM (Guide to the Expression of Uncertainty in Measurements), an extensive analysis concerning the contributors to the uncertainty budget has been conducted. At present the instrumental expanded uncertainty (p = 95 %) is believed to be about 8 parts in 10-9 of the surface gravity value. The detailed description of the IMGC-02 apparatus and an outline of its metrological characterization is the subject of this paper.
A transportable absolute gravity meter adopting the symmetric rise and falling method / Capelli, A; D'Agostino, Giancarlo; Desogus, S; Germak, ALESSANDRO FRANCO LIDIA; Origlia, C; Quagliotti, D.. - CD rom:(2006), pp. ---. (Intervento presentato al convegno XVIII IMEKO World Congress, Metrology for a Sustainable Developmen tenutosi a Rio de Janeiro, Brazil nel 2006, September 17-22).
A transportable absolute gravity meter adopting the symmetric rise and falling method
D'AGOSTINO, GIANCARLO;GERMAK, ALESSANDRO FRANCO LIDIA;ORIGLIA C;
2006
Abstract
The Gravimetry Group of the Institute of Metrology “G. Colonnetti” (IMGC-CNR), nowadays National Institute of Research in Metrology (INRIM), developed a new version of a transportable absolute gravimeter, the IMGC-02. The instrument presents several improvements mainly concerning the transportability, the measurement automation and the user-interface programs. According to the ISO-GUM (Guide to the Expression of Uncertainty in Measurements), an extensive analysis concerning the contributors to the uncertainty budget has been conducted. At present the instrumental expanded uncertainty (p = 95 %) is believed to be about 8 parts in 10-9 of the surface gravity value. The detailed description of the IMGC-02 apparatus and an outline of its metrological characterization is the subject of this paper.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
