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Research on Designing on-Line Testing System of Automobile Engine Box

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Abstract:

According to the current situation that most kind of automobile engine box were taken off-line random testing and the key technology of on-line detection, after the analysis of precision index and geometrical tolerances, the on-line testing model has been made by us. According to the model: ① double array CCD have been used to calibrate the positioning pin holes; ② image processing measurement method based on linear CCD has been determined; ③ automatic control method in which grating control scanning step distance has been adopted to improve the accuracy of image collection; ④ image edge extraction algorithm has been used to realize automatic fast testing. Experimental results show that: effective and rapid precise measurement can be achieved.

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Periodical:

Applied Mechanics and Materials (Volumes 130-134)

Pages:

353-356

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.130-134.353

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Online since:

October 2011

Authors:

Yu Juan Li, Bao Guang Wang

Keywords:

CCD, Edge Extraction, Grating, Image Acquisition, On-Line Testing

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

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