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Proceedings Paper

New 360-deg. rotation profilometry and its application in engine design
Author(s): Xi Zhang; Ping Sun; Haifeng Wang
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Paper Abstract

A new automatic measurement technique for 360 degrees surface topography of 3D diffuse objects is proposed in this paper. The technique bases on a new structured illumination method, called step projection, and a new algorithm. The principle, hardware and software of the automated measurement system are completely expressed. Some researchers are carried out on the accuracy of step projection. It is suitable for 360 degrees objects like asymmetrical cylinder, especially for objects with irregular surface. Besides this, it has many advantages, such as simple optical setting, lower cost, and easy determination of deformed line's position. Using the technique a 360 degrees 3D object with greater grads change on its surface can be reconstructed. The shape of flow passage of engine valve is very irregular. By using the automated rotation profilometry, it can be measured accurately. The experimental results are offered.

Paper Details

Date Published: 29 May 2002
PDF: 4 pages
Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); doi: 10.1117/12.468839
Show Author Affiliations
Xi Zhang, Shanghai Marine Diesel Engine Research Institute (China)
Ping Sun, Shanghai Marine Diesel Engine Research Institute (China)
Haifeng Wang, Shanghai Marine Diesel Engine Research Institute (China)

Published in SPIE Proceedings Vol. 4537:
Third International Conference on Experimental Mechanics

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