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| Piecewise Interpolation Measurement in Circular Indexing Angle Measurement Verification |
| WANG Lei,ZHANG Zhong-wu,WANG Zhen,SUN Fang-jin,WANG Chun-xi,ZANG Tie-li,LIU Xiao-xu |
| Beijing Aerospace Institute for Metrology and Measurement Technology, Beijing 100076, China |
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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.
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Received: 06 February 2018
Published: 19 December 2019
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2020, Vol. 41 
