A New Method for Accurately Evaluating Planar Straightness Error

Jiang Yuan; Zi Xue Qiu; Jin Wei Cao

doi:10.4028/www.scientific.net/AMM.37-38.18

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 37-38A New Method for Accurately Evaluating Planar...

A New Method for Accurately Evaluating Planar Straightness Error

Abstract:

Because of the disadvantages in evaluating straightness error of the traditional method, such as high algorithm complexity, low evaluating precision, it can’t be appropriate for various instruments. A fast and accurate method called intercept of convex polygon algorithm is put forward to implement least envelope zone for evaluating plane straightness errors. The algorithm is based on the convex-hull theory in computational geometry, the measuring data of various instruments are firstly converted into coordinate value, then constructed the convex polygon by slope factor. The unique point meeting the least condition can be found, and the straightness error can be calculated through shear shift conversion. Experimental results show that the method is simple and easy for automatic data processing by computer, and has features of high precision and high speed.

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Periodical:

Applied Mechanics and Materials (Volumes 37-38)

Pages:

18-22

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.37-38.18

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Online since:

November 2010

Authors:

Jiang Yuan, Zi Xue Qiu, Jin Wei Cao

Keywords:

Convex Polygon, Evaluating, Intercept, Least Envelope Zone, Straightness Error

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