Three-dimensional profile measurement of steep object by optical fiber frequency mixing fringe projection technology

Xiaoyan Lin; Libo Yuan

doi:10.1117/12.783624

17 January 2008 Three-dimensional profile measurement of steep object by optical fiber frequency mixing fringe projection technology

Xiaoyan Lin, Libo Yuan

Author Affiliations +

Proceedings Volume 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 672348 (2008) https://doi.org/10.1117/12.783624
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

Based on the theory of Fourier transformation profilometry(FTP), a novel profile measurement of steep object using fiber frequency mixing projection is proposed. With this method, optical fiber frequency mixing interference fringes are acquired through three optical fibers interference. It is made of three sets fringes with different spatial frequency. The spatial frequency of the interference stripes is changed through changing the spacing of the optical fiber end. The new three- optical- fiber frequency mixing profilometry only needs one frame of image to demodulate phase. Two deforming fringes with different frequency are captured at the same time. The surface range of the object is detected by the low frequency fringes. The precision depends on high frequency fringes. Finally, the exact profile of steep object is detected by data fusion. In the paper, a multi-functional projector is designed. Theory and experiment research are done to verify this novel method. Experimental results show that the method features accurate phase unwrapping with extensive measurement range.

Citation Download Citation

Xiaoyan Lin and Libo Yuan "Three-dimensional profile measurement of steep object by optical fiber frequency mixing fringe projection technology", Proc. SPIE 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 672348 (17 January 2008); https://doi.org/10.1117/12.783624

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Optical fibers

Projection systems

Charge-coupled devices

3D metrology

Spatial frequencies

Data fusion

Fiber couplers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years