Studying parameters and quality of thread by optical light field recorder

International Conference on Innovations and Prospects of Development of Mining Machinery and Electrical Engineering 2018

矿业工程;电工学

Maksarov, V.V.^1 ; Makhov, V.E.^2

Saint-Petersburg Mining University, 21 Line, St. Petersburg

199106, Russia^1

Mozhaisky Military Space Academy, Zhdanov street, 13, St. Petersburg

197082, Russia^2

关键词: Computer technology;    Depth of field;    Morphological images;    National Instruments;    Optical scheme;    Optoelectronic systems;    Profile heights;    Thread surface;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/194/6/062017/pdf
DOI  :  10.1088/1755-1315/194/6/062017

来源: IOP

【 摘 要 】

The work suggests a method to inspect the profile and micro-relief of thread surface using a light-field optoelectronic system based on a digital camera with a collection of microlenses. The authors have developed an optical scheme to record 3D images of the profile and micro-relief of the controlled thread surface. The system involves computer technologies of National Instruments Company (NI, USA) to elaborate the algorithms for determination of thread profile geometry and micro-relief parameters. The results demonstrate that the implementation of the algorithms of morphological image layer analysis derived from the light field file specifying the depth of field allows increasing multiple times the accuracy of thread profile determination using the profile height. The article was prepared according to the State task (the project's number No 9.10520.2018/11.12)