CCM.G-K2.2017 and EURAMET.M.G-K3

MEASURAND           Free-fall acceleration

NOMINAL VALUE         9.81 m/s2

 

Degrees of equivalence represented by Di and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in µGal(1).

The degrees of equivalence have been determined via a weighted least-square adjustment of the measurements results obtainded with each NMI/DI gravimeter.

Lab i [AG( i)]
Di
Participating institutes

(1) The gal (symbol: Gal) is a non SI unit of acceleration employed in geodesy and geophysics to express acceleration due to gravity. 1 µGal = 1 x 10-8 m/s2.

AG - Acceleration Gravimeter

The instrument used is indicated within brackets, next to the institute acronym.

CCM.G-K2.2017 and EURAMET.M.G-K3

MEASURAND           Free-fall acceleration

NOMINAL VALUE         9.81 m/s2

 

Degrees of equivalence represented by Di and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in µGal(1).

The degrees of equivalence have been determined via a weighted least-square adjustment of the measurements results obtainded with each NMI/DI gravimeter.

LABi Di Uneg,i Upos,i
µGal
µGal
µGal
BEV [FG5-242] -0.1 6.9
NIM [NIM-3A] 0.4 6.3
VÚGTK/RIGTC [FG5-215H] -1.0 4.5
FGI [FG5X-221] 0.9 4.7
LNE-SYRTE [FG5-228] 0.3 5.5
NMIJ AIST [FG5-213] 0.0 6.5
LGUL [FG5X-216] 0.9 4.9
KRISS [FG5X-104] -0.6 4.3
SASO-NMCC [FG5X-253] -0.5 4.9
METAS [FG5X-209] 3.9 7.9
NIMT [FG5X-248] -0.7 4.7
UME [FG5X-254] -2.7 4.9
NIST [FG5-204] 1.3 3.9
VÚGTK/RIGTC [FG5-215H] -1.2 5.0
BEV [FG5-242] -1.1 5.5
FGI [FG5X-221] 1.1 5.3
UME [FG5X-254] -2.0 5.2
INRIM [IMGC-02] -1.1 10.9
Participating institutes
CCM.G-K2.2017
EURAMET.M.G-K3

(1) The gal (symbol: Gal) is a non SI unit of acceleration employed in geodesy and geophysics to express acceleration due to gravity. 1 µGal = 1 x 10-8 m/s2.

The instrument used is indicated within brackets, next to the institute acronym.

Comparison
Comparison close
CC comparison
Linked comparison
EURAMET.M.G-K3
Metrology area, Sub-field Mass and related quantities, Gravity
Description Free-fall acceleration
Time of measurements 2018
Status Approved for equivalence
Final Reports of the comparisons
References

EURAMET.M.G-K3 Registration and progress form

Measurand Free-fall acceleration at 9.81 m/s2
Parameters Free-fall accelerations corrected for gravimetric Earth tides, atmospheric and polar motion effects at 4 sites in Wettzell station (Germany)
Transfer device Absolute gravimeters
Comparison type Key Comparison
Consultative Committee CCM (Consultative Committee for Mass and Related Quantities)
Conducted by EURAMET (European Association of National Metrology Institutes)
RMO Internal Identifier EURAMET Projet N° 1432
Comments
The comparison is intended to be organised as EURAMET.M.G-K3 key comparison and pilot study and linked to the CCM.G-K2.2017 by means of joint participants. The results of comparison will be also used for demonstrating different adjustment approaches and for improvement of the Technical Protocol of comparisons.

 
Pilot institute VUGTK/RIGTC
Research Institute of Geodesy, Topography and Cartography
Czechia
Contact person Vojtech Pálinkáš

+420 323649235
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
VUGTK/RIGTC

Research Institute of Geodesy, Topography and Cartography, Czechia, EURAMET

BEV

Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET

FGI

Finnish Geospatial Research Institute, Finland, EURAMET

INRIM

Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET

UME

TÜBITAK Ulusal Metroloji Enstitüsü, Turkey, EURAMET

CCM.G-K2.2017 and EURAMET.M.G-K3

MEASURAND           Free-fall acceleration

NOMINAL VALUE         9.81 m/s2

 

The gal (symbol: Gal) is a non SI unit of acceleration employed in geodesy and geophysics to express acceleration due to gravity. 1 µGal = 1 x 10-8 m/s2.

 

Linking EURAMET.M.G-K3 to CCM.G-K2.2017

The results issued from EURAMET.M.G-K3 were linked to CCM.G-K2.2017 via VUGTK/RIGTC (Czechia), BEV (Austria), FGI (Finland) and UME (Turkey) who participated in both comparisons, see EURAMET.M.G-K3 Final Report.

CCM.G-K2.2017 and EURAMET.M.G-K3

MEASURAND           Free-fall acceleration

NOMINAL VALUE         9.81 m/s2

 

CCM.G-K2.2017

The gal (symbol: Gal) is a non SI unit of acceleration employed in geodesy and geophysics to express acceleration due to gravity. 1 µGal = 1 x 10-8 m/s2.

 

EURAMET.M.G-K3

 

The gal (symbol: Gal) is a non SI unit of acceleration employed in geodesy and geophysics to express acceleration due to gravity. 1 µGal = 1 x 10-8 m/s2