Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Surface roughness measurement for semi-spherical workpieces based on Bessel structured beam

[+] Author Affiliations
Hao Meng, Lianqing Zhu

Beijing Information Science & Technology Univ. (China)

Zhongyu Wang

Beihang Univ. (China)

Proc. SPIE 7997, Fourth International Seminar on Modern Cutting and Measurement Engineering, 799726 (May 26, 2011); doi:10.1117/12.891860
Text Size: A A A
From Conference Volume 7997

  • Fourth International Seminar on Modern Cutting and Measurement Engineering
  • Jiezhi Xin; Lianqing Zhu; Zhongyu Wang
  • Beijing, China | December 10, 2010

abstract

Laser triangulation method is a method in common use to measure surface roughness. In the traditional laser triangulation method, a Gaussian beam is used to scan the measured surface point by point. Since the data is collecting by means of point scanning, a considerable number of measurements are essential for the whole measured surface. Hence the measurement of a semi-spherical surface is costly and time consuming. In this paper Bessel structured beam is used in the triangulation measurement system instead of Gaussian beam. Owing to the characteristics of its longer focal depth, the system using Bessel structured beam possesses the advantages of wider measurement range, higher theoretical measurement accuracy and resolution over the traditional laser triangulation measurement system. With scanning the measured surface using the concentric rings of Bessel structured beam, a piece of area on the workpieces' surface can be measured through only once measurement. Taking a latitudinal circle with a radius of 5mm as an example, it takes only 9.3s to obtain the surface profiles of the whole latitudinal circle with the proposed system in this paper, while it must be measured point by point with the stylus device and more than 60s are needed.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Hao Meng ; Lianqing Zhu and Zhongyu Wang
"Surface roughness measurement for semi-spherical workpieces based on Bessel structured beam", Proc. SPIE 7997, Fourth International Seminar on Modern Cutting and Measurement Engineering, 799726 (May 26, 2011); doi:10.1117/12.891860; http://dx.doi.org/10.1117/12.891860


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.