The gravity field in force standard machines

authored by: M. Schilling, L. Timmen, R. Kumme
Abstract: The gravity acceleration g plays an important role in several physical quantities as provided by National Metrology Institutes. The unit of force is realized in dependence on g in force standard machines (FSM). We present the results of the combination of forward modeling and gravimetric observations to determine the absolute value of g inside the new 200 kN FSM of the Physikalisch-Technische Bundesanstalt (PTB). A model of the machine itself and gravimetric measurements, performed prior and after the installation of the FSM, are compared. The agreement is within 10 nm/s². The final uncertainty concerning g is 1.2×10⁻⁷ due to temporal variations typically neglected in force measurements.
Organisation(s): Institute of Geodesy
External Organisation(s): National Metrology Institute of Germany (PTB)
Type: Conference contribution
Publication date: 2017
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Civil and Structural Engineering, Instrumentation, Industrial and Manufacturing Engineering
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{c81aa51679e042d8aace7cfc0e734740,
title = "The gravity field in force standard machines",
abstract = "The gravity acceleration g plays an important role in several physical quantities as provided by National Metrology Institutes. The unit of force is realized in dependence on g in force standard machines (FSM). We present the results of the combination of forward modeling and gravimetric observations to determine the absolute value of g inside the new 200 kN FSM of the Physikalisch-Technische Bundesanstalt (PTB). A model of the machine itself and gravimetric measurements, performed prior and after the installation of the FSM, are compared. The agreement is within 10 nm/s2. The final uncertainty concerning g is 1.2×10−7 due to temporal variations typically neglected in force measurements.",
keywords = "Force standard machine, Forward gravity modelling, Gravimetry, Gravity",
author = "M. Schilling and L. Timmen and R. Kumme",
note = "Funding information: The authors thank the Leibniz Institute for Applied Geophysics (LIAG) for providing the CG3-3210 gravimeter for the second measurement campaign.; 23rd IMEKO TC3 Conference on Measurement of Force, Mass and Torque 2017: Measurement Facing New Challenges ; Conference date: 30-05-2017 Through 01-06-2017",
year = "2017",
language = "English",
series = "23rd IMEKO TC3 Conference on Measurement of Force, Mass and Torque 2017: Measurement Facing New Challenges, Held Together with TC5 and TC22",
publisher = "IMEKO-International Measurement Federation Secretariat",
booktitle = "23rd IMEKO TC3 Conference on Measurement of Force, Mass and Torque 2017",
}