<strong>Publisher’s Note</strong>: This paper, originally published on 18 January 2019, was retracted from the SPIE Digital Library on 24 April 2019 upon verification that an incomplete draft of the paper was submitted and published in which text and figures were omitted, and figures were adapted or copied from the following publications without attribution:<p> </p>
<strong>Figure 1</strong>: Christian Rothleitner, “Ultra-high Precision, Absolute, Earth Gravity Measurements,” Dissertation, Universitat Erlangen-Nuremberg, Fig. 2.3, page 28 (June 2008).<p> </p>
<strong>Figure 4</strong>: S Svitlov, P Masłyk, Ch Rothleitner, H Hu, and L J Wang, “Comparison of three digital fringe signal processing methods in a ballistic free-fall absolute gravimeter,” Metrologia, Volume 47, Number 6 (2010); https://doi.org/10.1088/0026-1394/47/6/007<p> </p>
<strong>Figures 7 and 8</strong>: S Svitlov, Ch Rothleitner, and L J Wang, “Accuracy assessment of the two-sample zero-crossing detection in a sinusoidal signal,” Metrologia, Volume 49, Number 4 (2012); https://doi.org/10.1088/0026-1394/49/4/413<p> </p>
The authors regret their oversight.
The basic principle of a dynamic goniometer based on fiber optic gyroscope was introduced. According to this principle, the model on uncertainty of angle measurement results was established and the simulation analysis on uncertainty of measurement results was performed. Furthermore, a series of repetitive experiments with this goniometer at different rotational velocities were carried out. Experiments results showed that they were consistent with the uncertainty got from the theoretical analysis when the confidence level was set to 95% and the evaluation model on uncertainty was effective.