A suspended laser interferometer for determining the Newtonian constant of gravitation

A suspended laser interferometer for determining the Newtonian constant of gravitation

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 rel...

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Veröffentlicht in:IEEE transactions on instrumentation and measurement 2001-04, Vol.50 (2), p.598-600
Hauptverfasser: Parks, H.V., Faller, J.E., Robertson, D.S.
Format: Artikel
Sprache:eng
Schlagworte:
Attraction
Deflection
Earth
Extraterrestrial measurements
Gravitation
Gravity measurement
Helium
Instrumentation
Interferometers
Laboratories
Laser transitions
Lasers
Microwave measurements
Testing
Tungsten
Uncertainty
Wire
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Zusammenfassung: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/spl times/10/sup -5/.
ISSN:0018-9456
1557-9662
DOI:10.1109/19.918200