CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 4588 > Article
Open Access Paper
28 May 2002 Michelson-interferometer-based method for measuring the angle of rotation
Cexiang Foo, Gaurav Madan, Theresa Lai, Mark Wee, Yu Fu, Huai Min Shang
Author Affiliations +
Proceedings Volume 4588, Seventh International Conference on Education and Training in Optics and Photonics; (2002) https://doi.org/10.1117/12.468719
Event: Education and Training in Optics and Photonics 2001, 2001, Singapore, Singapore
Abstract
For measuring the angle of rotation of flat objects using projected fringes, the method of point-of-light triangulation and the method of line-of-light triangulation will breakdown when the grating lies on the axis of rotation. Therefore, a grating other than a point or linear lines is preferred. In this paper, a simple Michelson interferometer-based method for the generation and projection of circular gratings is described. The basic optical element in a Michelson interferometer is a beam- splitting cube. With this Michelson interferometer, a circular grating is observed when the screen is placed normal to the line containing the two point-light sources produced by the beam splitter. By placing an expander between the beam-splitter and the laser source, and by carefully adjusting the two mirrors beside the beam- splitting cube, the frequency of the circular grating can be adjusted. This paper also describes the use of the generated circular optical grating for measuring the amount of rotation of flat surfaced that are either diffuse or specularly reflective - the method is based on relating the distortion of the circular grating to the angular rotation of the surface.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Cexiang Foo, Gaurav Madan, Theresa Lai, Mark Wee, Yu Fu, and Huai Min Shang "Michelson-interferometer-based method for measuring the angle of rotation", Proc. SPIE 4588, Seventh International Conference on Education and Training in Optics and Photonics, (28 May 2002); https://doi.org/10.1117/12.468719
PROCEEDINGS
 6 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Lens.org Logo
CITATIONS
Cited by 2 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Reflectivity
Mirrors
Distortion
Michelson interferometers
CCD cameras
Cameras
Laser sources
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top