Comparison of Open and Solid Falling Retroreflector Gravimeters

@article{Ashby2020ComparisonOO,
  title={Comparison of Open and Solid Falling Retroreflector Gravimeters},
  author={Neil Ashby and Derek van Westrum},
  journal={Metrologia},
  year={2020}
}
We study whether the optical properties of a solid glass retroreflector influence the value of the acceleration of gravity $g$ determined by dropping both solid and open retroreflectors in an absolute ballistic gravimeter. The retroreflectors have equivalent optical centers and are dropped from the same height, at a fixed location, in the same gravimeter while recording time data corresponding to fixed fringe separation intervals of 400 fringes. The data for both types of retroreflectors are… 

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References

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We develop a relativistic treatment of interference between light reflected from a falling cube retroreflector in the vertical arm of an interferometer, and light in a reference beam in the
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Comment on ‘Relativistic theory of the falling retroreflector gravimeter’
In the paper by Ashby (2018 Metrologia 55 1?10) the correction due to the time delay of light propagated through the prism retroreflector of absolute gravimeters is discussed. Accordingly, the
No correction for the light propagation within the cube: comment on ‘Relativistic theory of the falling retroreflector gravimeter’
Although the equation of motion developed in the paper (Ashby 2018 Metrologia 55 1) depends on the parameters of the falling cube, such as depth and refraction index, the parameters are only
Reply to ‘Comment on Relativistic theory of the falling cube gravimeter’
In the subject paper [1] of the comment [2], light propagation through an absolute gravimeter was analyzed, including the propagation delay through the falling retroreflector and through the vacuum.
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