2020年3月
Three-dimensional surface profile measurement of a cylindrical surface using a multi-beam angle sensor
Precision Engineering
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- 巻
- 62
- 号
- 開始ページ
- 62
- 終了ページ
- 70
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.precisioneng.2019.11.009
© 2019 Elsevier Inc. To investigate the application of the multi-beam angle sensor (MBAS) to high-precision optical aspheric and freeform surfaces, which are critical components in optical systems, we present a method of using an MBAS to reconstruct an aspheric surface from angle data. The MBAS is based on a multi-autocollimator system with a microlens array, which can split the beam into several spots and can convert centroid detection of the light intensity into an angle measurement. The MBAS is designed to address the curvature-range problem via a circumferential scan better than other methods and automatically eliminates the tilt error caused by rotation of a workpiece. Using a tracking technique, the MBAS can automatically determine focal spot positions from the centroid measurement of the light intensity. This is directly related to the accuracy of the angular difference measurement. The experimental results confirm the feasibility of using an MBAS for 3D surface profile measurements of cylindrical surfaces.
- リンク情報
- ID情報
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- DOI : 10.1016/j.precisioneng.2019.11.009
- ISSN : 0141-6359
- ORCIDのPut Code : 82202324
- SCOPUS ID : 85075216673