Title :
A suspended laser interferometer for determining the Newtonian constant of gravitation
Author :
Parks, Harold V. ; Faller, James E. ; Robertson, Douglas S.
Author_Institution :
Joint Inst. for Lab. Astrophys., Nat. Inst. of Stand. & Technol., Boulder, CO, USA
fDate :
4/1/2001 12:00:00 AM
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 a relative uncertainty of 3×10-5
Keywords :
Fabry-Perot interferometers; gravitational constant; measurement uncertainty; pendulums; Newtonian constant of gravitation; deflection; gravitational attraction; pendulums; relative uncertainty; suspended Fabry-Perot laser interferometer; Earth; Extraterrestrial measurements; Gravity measurement; Helium; Laboratories; Laser transitions; Microwave measurements; Testing; Tungsten; Wire;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
