An automated calibration system that combines fringe projection and 2D digital image correlation

Philip Siegmann; Luis A. Felipe-Sesé; Francisco Díaz Garrido; José Piñeiro-Ave

doi:10.1117/12.2191110

24 September 2015 An automated calibration system that combines fringe projection and 2D digital image correlation

Philip Siegmann, Luis A. Felipe-Sesé, Francisco Díaz Garrido , José Piñeiro-Ave

Proceedings Volume 9628, Optical Systems Design 2015: Optical Fabrication, Testing, and Metrology V; 96281G (2015) https://doi.org/10.1117/12.2191110
Event: SPIE Optical Systems Design, 2015, Jena, Germany

Abstract

An optical non-contact and full-field system that allows large displacement measurements in x-, y- and z-direction is presented. The system combines 2-dimentional digital image correlation (for in-plane measurements) and fringe projection (for out-of-plane displacements) and uses only one camera. The in- and out-of-plane displacements are obtained at the same instant allowing real-time measurements thanks to a color encoding filtering procedure. The out-of-plane measurement allows the correction of the in-plane measurements and the system has to be precisely aligned by following an established alignment procedure. Furthermore, a calibration has to be done to obtain a fringe parameter k for each pixel of the specimen surface image necessary to relate the shifted phase with the out-of-plane displacements. The presented system obtains different values of k for each pixel because of the divergent and non-normal incidence of the fringe beam onto the sample surface (non zero incidence angle). The calibration is performed automatically and only has to be done once for each configuration of the system. The system is portable and can be easily adapted to measure large displacements and wide areas (using small incidence angle) or smaller distances but with higher resolutions (when increasing the incidence angle).

Citation Download Citation

Philip Siegmann, Luis A. Felipe-Sesé, Francisco Díaz Garrido , and José Piñeiro-Ave "An automated calibration system that combines fringe projection and 2D digital image correlation", Proc. SPIE 9628, Optical Systems Design 2015: Optical Fabrication, Testing, and Metrology V, 96281G (24 September 2015); https://doi.org/10.1117/12.2191110

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