Determination of the Irregularity of the Pivot of the Horizontal Axle of A Meridian Circle by Means of An Axle Collimator
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Graphical Abstract
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Abstract
When a high-precision meridian circle is developed, the effects of the irregularity of the pivot of the horizontal axle should be taken into account. It is proposed in this paper that an axle collimator should be place on the circle to make the accurate determination of the irregularity of the pivot.
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