Author： Wetherelt A. Hunt P.
Publisher： Maney Publishing
ISSN： 1752-2706
Source： Survey Review, Vol.36, Iss.279, 2001-01, pp. : 2-11
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Abstract
The tape zero or unknown equilibrium position of a suspended gyro has, in the past, been relatively difficult to determine accurately. Frequently, existing methods of tape zero determination have not accounted precisely for the influence of damping factors. This paper presents a new iterative method to establish estimates of the parameters for a damped oscillation model and locate its equilibrium position. Results have proved to be consistent with those obtained by more traditional methods and more reliable. Consideration is given to the possibility of applying similar techniques to the spun mode of operation of the gyro, and utilisation of automated timing.
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