測角器械の軸並びに分度円関係誤差について

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タイトル別名
  • ON THE ERRORS DUE TO INCORRECTNESS OF AXES AND GRADUATED CIRCLE IN THE ANGLE MEASURING INSTRUMENTS
  • ソッカク キカイ ノ ジク ナラビニ フンドエン カンケイ ゴサ ニ ツイテ

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抄録

The errors due to the incorrectness of axes and graduated circle constitute, together with the errors due to optical parts, the greatest part of the instrumental errors in angle measuring instruments. It is needless to say that the accurate grasp of these errors is indispensable to the execution of precise geodetic surveying. In this paper, following the previous paper, “On the shape of locus of collimation points in the surveying telescopes and observation errors due to them”, the author made an exhaustive analytical study about the errors due to incorrectness of axes and graduated circle in the angle measuring instruments, and filled the gap in its present theory. Further, he applied the analytical results to the 1st order theodolite “Wild T3” and cited the actual observational results concerning the axial and graduated circular errors by using collimators.

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