Title :
A suspended laser interferometer for determining the Newtonian constant of gravitation
Author :
Parks, H.V. ; Faller, J.E. ; Robertson, D.S.
Author_Institution :
Joint Inst. for Lab. Astrophys., Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
Progress is reported on an experiment to measure the Newtonian constant of gravitation, G, with a suspended Fabry-Perot laser interferometer. With this technique, we measure the deflection of simple pendulums due to the gravitational attraction of tungsten masses. A result for G is expected with an accuracy of roughly 30 ppm.
Keywords :
Fabry-Perot interferometers; gravitational constant; gravitational experiments; measurement by laser beam; pendulums; Fabry-Perot laser interferometer; Newtonian constant; W; W masses; deflection; gravitation; gravitational attraction; pendulums; suspended laser interferometer; Earth; Fabry-Perot; Laboratories; Laser theory; Laser tuning; Microwave measurements; Optical interferometry; System testing; Tungsten; Wire;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.851123
