An Measuring and Evaluation Method of Coaxiality Error for Large-Scale Holes

Wen Juan Xie

doi:10.4028/www.scientific.net/AMR.605-607.964

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 605-607An Measuring and Evaluation Method of Coaxiality...

An Measuring and Evaluation Method of Coaxiality Error for Large-Scale Holes

Abstract:

Abstract:One measurement system of coaxiality error aimd at large-scale holes is introduced in this paper, laser probe is used in the equipment to sample surface of the holes and realize non-contact measurement , actual surface profile signal of every cross section is obtained . The threshold de-noising approach based on wavelet transform is proposed for original signals to improve the measurement accuracy . After computing centre coordinates of every cross section based on least square principle, the reference axis is matched , so the evaluation rule of coaxiality error is deduced and the mathematical model is estabished. Experiment show that the method is accurate and reliable , simple and practical , so it can meet the requirements of high accurate measuring for large-scale holes at the industrial scene completely.

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Periodical:

Advanced Materials Research (Volumes 605-607)

Pages:

964-967

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.605-607.964

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Online since:

December 2012

Authors:

Wen Juan Xie

Keywords:

Coaxiality Error, Large-Scale Holes, Non-Contact Measurement, Wavelet De-Noising

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