介绍一种用双自准直仪和多齿分度台组合测量静态测角分度误差的测量方法。
This paper introduces the method for the synthetic of measuring quiescing goniometry with two autocollimators and precise angle dividing table.
测量齿顶圆直径估算分度圆螺旋角，用分度头在铣床上修正分度圆螺旋角，并进行误差分析。
The spiral angle of graduated circle was rough estimated by measuring the addendum circle diameter and modified on milling machine.
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