Machine vision technology for measurement of miniature parts in narrow space using borescope

摘要：

To achieve precise measurement for miniature parts in narrow space, a decouple measurement method using borescope was proposed. A rigid borescope was inserted into narrow space to acquire image, and image processing and image information obtaining was achieved based on IMAQ Vision module built in LabVIEW, the measuring position information of the borescope was obtained by the driving linear stage, the position and attitude information of the object to be measured was gained by combining image and measuring position information eventually. A borescope measurement system based on machine vision, which was composed of a borescope, a CCD camera, an industrial computer, and a precision linear stage mounted with an optical linear encoder, was developed by adopting the above measurement method. The image processing algorithm was developed based on IMAQ Vision. The developed measurement system was used to measure the space of circular rings, and comparison with the results measured by universal tool microscope shows the maximum absolute measurement error of this system was below 8μm.

关键词： borescopemeasurement machine vision miniature parts narrow space IMAQ vision

作者: Tao Zhang Yi Luo Xiaodong Wang Mixin Wang

作者单位: Key Laboratory for Micro/Nano Technology and System of Liao-Ning Province, Dalian University of tech Key Laboratory for Micro/Nano Technology and System of Liao-Ning Province, Dalian University of tech

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 903-906

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）