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On-machine measurement method for micro-structured surface by integral imaging with workpiece rotating technique.
- Source :
-
Optical Engineering . May2021, Vol. 60 Issue 5, p51210-51210. 1p. - Publication Year :
- 2021
-
Abstract
- To measure large and heavy micro-structured workpieces in situ and improve the measurement accuracy, which strongly depends on the environment during the measurement of micro-structured surfaces, a workpiece rotating technique is proposed. This method utilizes the precise rotation of machine tools to drive the workpiece and records a set of elemental image arrays for the pickup stage to overcome the upper-resolution limit imposed by the Nyquist sampling theorem, which allows the increase in the two-dimensional spatial resolution of the computed depth images in integral imaging. By extracting the depth position, we can obtain accurate depth information and measurement results for micro-structured surfaces. We carried out simulations and experiments to demonstrate the proposed method, and the results show the feasibility of our method. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00913286
- Volume :
- 60
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Optical Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 150633947
- Full Text :
- https://doi.org/10.1117/1.OE.60.5.051210