Research on vision-based profile measurement of micro special-shaped component

Tao Geng; HaiBin Wu; YongChang Li

doi:10.1117/12.906528

28 November 2011 Research on vision-based profile measurement of micro special-shaped component

Tao Geng, HaiBin Wu, YongChang Li

Proceedings Volume 8200, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology; 82001D (2011) https://doi.org/10.1117/12.906528
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

Fused-taper optical fiber devices are the most typical and basic optical passive devices. Electro-thermal fiber welding and tapering technique is one of new optical fiber fusion welding technologies and the heater's shape and temperature distribution has an important influence on the quality of optical fiber fusion. With help of Finite Element Analysis software, the temperature field distribution character of the specially shaped heater and surrounding temperature field are analyzed. According to the different kinds of microstructure optical fiber, adjust electrical parameter timely, then, better quality of optical fiber fusion will be got. In the paper, it suggests a vision measurement on the specially shaped heater's surface parameter which is based on image processing technology. This method chooses CCD as the image sensor. Firstly, median-filter of the 3x3 window in the detecting system is chosen to do the image pretreatment. Secondly, canny operator whose anti-noise capacity is strong is chosen as the edge detection operator in the system. Thirdly, with the method of least square, subarea curve fitting and straight line fitting are done to specially shaped component. The experiment results show that the morphology parameters of specially shaped heater can be calculated accurately. And the parameters can provide important information for studying on the heater temperature field distribution and the performance of the optical fiber fusion welding technology.

Citation Download Citation

Tao Geng, HaiBin Wu, and YongChang Li "Research on vision-based profile measurement of micro special-shaped component", Proc. SPIE 8200, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, 82001D (28 November 2011); https://doi.org/10.1117/12.906528

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