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.
Details
- Organisation(s)
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Institute of Geodesy
- External Organisation(s)
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Physikalisch-Technische Bundesanstalt 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
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Details in the research portal "Research@Leibniz University"
