Title :
A beam balance experiment to determine the gravitational constant
Author :
Schlamminger, S. ; Holzschuh, E. ; Kundig, W.
Author_Institution :
Phys.-Inst., Univ. Zurich, Switzerland
Abstract :
The goal of our experiment is a precision measurement of the gravitational constant G by means of a beam balance. The gravitational forces of two large and movable field masses act on test masses and change their weights. First measurements have been successfully completed with a relative uncertainty of 230 ppm. Since then various upgrades and improvements have been implemented.
Keywords :
gravitational constant; gravitational experiments; measurement uncertainty; beam balance experiment; gravitational constant measurement; gravitational forces; movable field masses; relative measurement uncertainty; test masses; weight change; Calibration; Copper; Gold; Measurement standards; Oxidation; Steel; Testing; Tungsten; Weight measurement; Wires;
Conference_Titel :
Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on
Conference_Location :
Ottawa, Ontario, Canada
Print_ISBN :
0-7803-7242-5
DOI :
10.1109/CPEM.2002.1034759
