The described work was carried out on June 2018 by the Istituto Nazionale di Ricerca Metrologica (INRiM) of Turin (Italy), for the participation to Regional Key Comparison of Absolute Gravimeters, EURAMET.M.G-K3 and Pilot Study, at the Geodetic Observatory in Wettzell (Germany), pilot lab VUGTK/RIGTC, Research Institute of Geodesy, Topography and Cartography, Czechia in cooperation with the German Federal Agency for Cartography and Geodesy (BKG). The EURAMET.M.G-K3 and Pilot Study is registered as EURAMET project 1432. The comparison was organized in accordance with the CIPM MRA-D-05 of the Consultative Committee on Mass and Related Quantities (CCM). The experimental results of the absolute measurement of the free-fall acceleration g in the three sites dedicated to the comparison are reported. The measurements were performed with the transportable absolute gravimeter IMGC-02 of the INRIM. In total, 16 other absolute gravimeters coming for different parts of Europe enjoined to the comparison. In the proximity of the measurement sites, a super-conductor relative gravimeter was enabled, in order to monitor the variation of the gravitation field along the days. With the IMGC-02 instrument a relative accuracy of few parts in 109 is reachable, i.e. measurement of g with uncertainty of tens microgals (1 μGal = 1 × 10−8 m s−2).
Il lavoro qui descritto è stato svolto nel mese di Giugno del 2018 dall’Istituto Nazionale di Ricerca Metrologica (INRiM), per la partecipazione al Regional Key Comparison of Absolute Gravimeters, EURAMET.M.G-K3 and Pilot Study, presso il Geodetic Observatory di Wettzell (Germania), laboratorio pilota il VUGTK/RIGTC, Research Institute of Geodesy, Topography and Cartography, Czechia con il supporto della Federal Agency for Cartography and Geodesy (BKG), Germania. Il confronto EURAMET.M.G-K3 and Pilot Study sono registrati come progetto EURAMET 1432. Il confronto è stato organizzato in conformità con il CIPM MRA-D-05 del Comitato Consultivo Masse e Grandezze Apparentate (CCM). Si riportano i risultati sperimentali della misura assoluta dell’accelerazione locale di gravità g nei tre siti dedicati per il confronto. Le misure sono state realizzate con il gravimetro assoluto trasportabile IMGC-02 dell’INRIM. Altri 16 gravimetri provenienti da diverse parti d’Europa sono stati utilizzati per il confronto. In prossimità dei siti di misura, era attivo un gravimetro relativo super-conduttore per controllare le variazioni del campo gravitazionale giorno per giorno. Con l’IMGC-02 si raggiunge un’accuratezza relativa di qualche parte in 109, ovvero misure di g con incertezza di decine di microgal (1 μGal = 1 × 10−8 m s−2).
Absolute measurements of the free–fall acceleration in Geodetic Observatory Wettzell (Germany) EURAMET.M.G-K3 2018 / Prato, A.; Mazzoleni, F.; Origlia, C.; Germak, A.. - 05/2020:(2020), pp. 1-21. [10.13140/RG.2.2.27084.23686]
Absolute measurements of the free–fall acceleration in Geodetic Observatory Wettzell (Germany) EURAMET.M.G-K3 2018
A. PratoWriting – Original Draft Preparation
;F. MazzoleniData Curation
;C. OrigliaMembro del Collaboration Group
;A. Germak
Writing – Review & Editing
2020
Abstract
The described work was carried out on June 2018 by the Istituto Nazionale di Ricerca Metrologica (INRiM) of Turin (Italy), for the participation to Regional Key Comparison of Absolute Gravimeters, EURAMET.M.G-K3 and Pilot Study, at the Geodetic Observatory in Wettzell (Germany), pilot lab VUGTK/RIGTC, Research Institute of Geodesy, Topography and Cartography, Czechia in cooperation with the German Federal Agency for Cartography and Geodesy (BKG). The EURAMET.M.G-K3 and Pilot Study is registered as EURAMET project 1432. The comparison was organized in accordance with the CIPM MRA-D-05 of the Consultative Committee on Mass and Related Quantities (CCM). The experimental results of the absolute measurement of the free-fall acceleration g in the three sites dedicated to the comparison are reported. The measurements were performed with the transportable absolute gravimeter IMGC-02 of the INRIM. In total, 16 other absolute gravimeters coming for different parts of Europe enjoined to the comparison. In the proximity of the measurement sites, a super-conductor relative gravimeter was enabled, in order to monitor the variation of the gravitation field along the days. With the IMGC-02 instrument a relative accuracy of few parts in 109 is reachable, i.e. measurement of g with uncertainty of tens microgals (1 μGal = 1 × 10−8 m s−2).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
