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An Absolute Determination of the Gravitational Acceleration at Sydney, Australia

G A Bell, D L H Gibbings and J B Patterson

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An absolute determination of the acceleration due to gravity has been completed at the Australian National Standards Laboratory. The experiment was of the free rise-and-fall type using a corner-reflector as the moving body. The value of g obtained was 9.796 720 m s-2, which is 138 μm s-2 below the value assigned to the site on the old Potsdam system. The estimated uncertainty of the result is ± 2 μm s-2(± 2 parts in 107).


PACS

06.30.Gv Velocity, acceleration, and rotation

06.30.Bp Spatial dimensions (e.g., position, lengths, volume, angles, and displacements)

07.60.Ly Interferometers

06.30.Ft Time and frequency

06.20.Dk Measurement and error theory

Subjects

Instrumentation and measurement

Dates

Issue 2 (April 1973)

Received 24 July 1972



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