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Proceedings Paper

Laser spot size of real-time detection and control system for laser polishing
Author(s): Feng Lie Zhang; Xing Fu; Qian Lin
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Paper Abstract

During laser micro-machining, the constant control of laser energy density is a key technology to improve the processing precision. This paper presents a laser spot size of real-time detection and control system design on the base CCD and FPGA processing technology. Using CCD video signal binarization method and FPGA processing technology, we realized real time detection and control of spot area on the workpiece to achieve a constant purpose. The relative measurement error of spot size is very small as maximum 0.5 percent, the resolution of spot size measurement is less than 10μm2. This system can be directly applied to control of laser spot in laser micro-polishing.

Paper Details

Date Published: 27 May 2011
PDF: 7 pages
Proc. SPIE 7997, Fourth International Seminar on Modern Cutting and Measurement Engineering, 79972C (27 May 2011); doi: 10.1117/12.882818
Show Author Affiliations
Feng Lie Zhang, Tianjin Univ. (China)
Xing Fu, Tianjin Univ. (China)
Qian Lin, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 7997:
Fourth International Seminar on Modern Cutting and Measurement Engineering

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