圆分度角用排列互比法测量时,一般选用较大的测量间隔角。为了测出大间隔角范围内的小角度偏差,提出了分段内插测量法。由于组成间隔角的两角位置的偏差已由排列互比法测出,因此可作为控制点。通过和小角度陪检工具的连续比较,消减陪检工具角度偏差的影响,得到间隔角范围内的小角度偏差。分段内插测量法是排列互比法的扩展与补充。
Abstract
The circle indexing angle is generally measured by selected a large interval angle when using permutation intercomparison method. In order to measure the deviation of a small angle which is in the range of the large interval angle, a piecewise interpolation measurement is proposed. Considering which have been measured by the permutation intercomparison method, the deviation of the two angle position composing the interval angle can be used as control points. In this interval angle, the small angle deviation can be observed through continuous comparison with small angle inspection tools. In conclusion, the piecewise interpolation measurement is the extension and supplement of the permutation intercomparison method.
关键词
计量学 /
圆分度角 /
分段 /
内插 /
小间隔角 /
测量
Key words
metrology /
circular indexing angle /
piecewise /
interpolation /
small interval angle /
measurement
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基金
国家重点研发计划(2016YFF0200700)
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