Nondestructive testing by digital shearography using a Savart plate

F. Michel; P. Blain; E. Auger; Y. Renotte; S. Habraken

doi:10.1117/12.839676

4 August 2009 Nondestructive testing by digital shearography using a Savart plate

F. Michel, P. Blain, E. Auger, Y. Renotte, S. Habraken

Proceedings Volume 7386, Photonics North 2009; 73861O (2009) https://doi.org/10.1117/12.839676
Event: Photonics North 2009, 2009, Quebec, Canada

Abstract

Shearography is a growing optical technique in the field of non-destructive testing (NDT)[1],[2]. Hololab developed an out of plane, in line and almost common path interferometer based on polarization states separation using a coated prism for digital phase-shifting shearography[3]. This setup is efficient but does not allow varying the shearing direction that is an important parameter for defects detection[1]and quantification[2]. To overcome this disadvantage, the coated prism is substituted by a Savart plate device that allows scanning several shearing directions by rotating the device around the light propagation axis. The behaviour of the Savart plate as a shearing device is experimentally analyzed to optimize its integration within the interferometer. Recorded phasemaps in NDT for different shearing directions are presented.

Citation Download Citation

F. Michel, P. Blain, E. Auger, Y. Renotte, and S. Habraken "Nondestructive testing by digital shearography using a Savart plate", Proc. SPIE 7386, Photonics North 2009, 73861O (4 August 2009); https://doi.org/10.1117/12.839676

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