Int. J. Metrol. Qual. Eng.
Volume 12, 2021
Topical Issue - Advances in Metrology and Quality Engineering
|Number of page(s)||6|
|Published online||06 May 2021|
Rapid non-contact visual measurement method for key dimensions of revolving workpieces
Nankai University, College of Computer Science, Tianjin 300071, PR China
2 Tianjin University, State Key Lab Precision Measuring Technology & Instruments, Tianjin 300072, PR China
3 Brunel University London, College of Engineering Design and Physical Sciences, Uxbridge UB8 3PH, UK
* Corresponding author: firstname.lastname@example.org
Accepted: 22 April 2021
Aimed at the rapid non-contact measurement problem of a revolving workpiece's radial and axial dimensions, a fast and high-precision visual inspection method has been presented in this paper. For the workpiece with large axial size, the proposed method established the measurement transformation chain using the object-image and object-object transformations, thus realizing the rapid axial dimensional measurements. For the workpiece with large radial size, this method determined the measurement transformation model based on two-dimensional target and measurement correspondence relationship, and further achieved rapid radial dimensional measurements. The experimental results have shown that the method is effective and can be applied to in situ dimensional measurement of revolving workpieces on high quality production lines.
Key words: Computer vision / revolving workpiece / real-time / non-contact measurement
© P. Gao et al., Published by EDP Sciences, 2021
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