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
CCM.G-K2.2017
Metrology area, Sub-field Mass and related quantities, Gravity
Description Comparison of absolute gravimeters
Time of measurements 2017
Status Approved for equivalence
Final Reports of the comparisons
Measurand Free-fall acceleration at 9.81 m/s2
Transfer device Absolute gravimeter
Comparison type Key Comparison
Consultative Committee CCM (Consultative Committee for Mass and Related Quantities)
Conducted by CCM (Consultative Committee for Mass and Related Quantities)
Comments

Results published on the KCDB web on 24 February 2020

 

Pilot institute NIM
National Institute of Metrology
China
Contact person Wu Shuqing

+86 10 6452 6003 / +86 10 6452 4565
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
NIM

National Institute of Metrology, China, APMP

BEV

Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET

FGI

Finnish Geospatial Research Institute, Finland, EURAMET

KRISS

Korea Research Institute of Standards and Science, Korea, Republic of, APMP

LGUL

Laboratory of Geophysics of the University of Luxembourg, Luxembourg, EURAMET

LNE-SYRTE

Observatoire de Paris/Systèmes de Référence Temps-Espace, France, EURAMET

METAS

Federal Institute of Metrology, Switzerland, EURAMET

NIMT

National Institute of Metrology (Thailand), Thailand, APMP

NIST

National Institute of Standards and Technology, United States, SIM

NMIJ AIST

National Metrology Institute of Japan, Japan, APMP

SASO-NMCC

National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization, Saudi Arabia, GULFMET

UME

TÜBITAK Ulusal Metroloji Enstitüsü, Turkey, EURAMET

VUGTK/RIGTC

Research Institute of Geodesy, Topography and Cartography, Czechia, 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