Transactions of Materials and Heat Treatment

Title：Study on 3D optical points dense cloud measuring system based on heterodyne multiple frequency phase shift technology

Authors： LIANG Jin XIAO Zhen-zhong ZANG Shun-lai LIANG Xin-he(School of Mechanical Engineering Xi'an Jiaotong University Xi'an 710049 China)

Unit：

KeyWords： 3D measuring reverse design gray code heterodyne multiple frequency

ClassificationCode：TG806

year,vol(issue):pagenumber：2008,33(1):143-147

Abstract：

With the rapid development of manufacture industry in China,more and more complicated curves are applied in the mechanical productions.The conventional 3D measuring devices,such as CMM,only can be applied to measure the small workpiece precisely,but as to the large worpiece with complicated curves,such as large automobile panel,large injection parts,welded automobile rind,turbine blade and large parabolic antenna and aero model and so on,the traditional apparatus are incapable to realize the whole size measurement.In view of the need of 3D rapid measuring and reverse engineering in large complicated-surfaced parts of vehicle,the principle of 3D optical measuring system was analyzed.The advantages and disadvantages of Gary code phase shift technology and heterodyne multiple frequency phase shift technology were compared.Based on heterodyne multiple frequency phase shift technology,the XJTUOM 3D optical dense points cloud measuring system was developed,and the convenience and practice of this system was also verified by amount of measuring tests on the large parts of vehicle.

Funds：

国家“863”项目(2007AA04Z124)

Reference：

[1]宋爱平,倪中华,张军,等.曲面板件三维模型表面数据的提取与平置处理[J].锻压技术,2007,32(1):113.
[2]周朝晖,蔡中义,李明哲,等.多点模具拉形中回弹的数值分析[J].锻压技术,2006,31(2):94.
[3]Huntley J M.Optical shape measurement technology:past,present and future[J].Proceedings of SPIE,2000,4076(1):162-173.
[4]Franc ois Blais.Review of 20 years of range sensor develop-ment[J].Journal of Electronic I maging,2004,13(1):231-240.
[5]Peisen S Huanga,Song Zhangb.3-D Optical measurement u-sing phase shifting based methods[J].Proceedings of SPIE,2005,6000(1):2-12.
[6]Nicola D′Apuzzo.Overviewof 3Dsurface digitizationtechnol-ogies in Europe[J].Proceedings of SPIE,2006,6056(1):1-13.
[7]Gomercic Mladen,Winter Detlef.Projector for an appange-ment for three-di mensional optical measurement of objects[P],US2006244977,2006-11-02.

Service：

【This site has not yet opened Download Service】【Add Favorite】