Transactions of Materials and Heat Treatment

Title：3D optical rapid inspect for foam model of auto dies

Authors： LI Da-cheng1 LIANG Jin2 XIAO Zhen-zhong2 LIU Jian-wei2(1. Department of Mechanical and Electrical Engineering Heyuan Polytechnic Heyuan 517000 China 2.School of Mechanical Engineering Xi'an Jiaotong University Xi'an 710049 China)

Unit：

KeyWords： optical measuring digital close range industry photogrammetry reverse design foam model

ClassificationCode：U466

year,vol(issue):pagenumber：2009,34(3):124-127

Abstract：

As to the large work-piece with complicated curves, the traditional measurement apparatus are incapable to realize the whole size measurement. In view of the need of 3D rapid measuring in auto die and mould foam model, the principle of 3D optical measuring system was analyzed, the XJTUDP 3D optical measuring system was developed, and the convenience and practice of this system were also verified by amount of measuring tests. Experiment results show that the relative accuracy of the "XJTUDP" 3D optical point measuring system is about 1/60000 to 1/150000,and the absolute accuracy of the "XJTUOM" 3D optical area scan measuring system is 0.03mm. They can meet the requirement of measurement on large scale auto dies on the aspects of accuracy, speed and efficiency.

Funds：

“863”项目(2007AA04Z124);; 江苏省科技支撑计划资助项目(BE2008058)

Reference：

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[3]Luhmann Th,Wendt K.Recommendations for an acceptance and verification test of optical3D measurement systems[J].International Archives for Photogrammetry and Remote Sens-ing,2000,33(5):493-499.
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[5]Munji R A H.Calibration of non-metric cameras using the fi-nite element method[J].Photogrammetric Engineering and Remote Sensing,1986,52(8):1201-1205.

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