Title :
The measurement of Newton´s gravitational constant with the MSL torsion balance
Author :
Armstrong, T.R. ; Fitzgerald, M.P.
Author_Institution :
Meas. Stand. Lab., Lower Hutt, New Zealand
Abstract :
We describe the current status of our determination of the Newtonian gravitational constant (G). Since our 1998 determination of G we have been making a measurement of G with our torsion balance operating in a dynamic mode. This paper briefly reports on the uncertainty analysis of our most recent compensated measurement and on our experiences of measuring G with the dynamic method.
Keywords :
balances; gravitational constant; measurement uncertainty; torsion; Newtonian gravitational constant measurement; compensated measurement; dynamic mode; magnetic damping system; torque balancing; torsion balance; uncertainty analysis; Damping; Electrostatics; Laboratories; Magnetic field measurement; Magnetic noise; Measurement standards; Noise reduction; Position measurement; Steel; Torque;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.851201
