Waveguide grating (moire) microinterferometer for inplane displacement/strain field investigation

Leszek A. Salbut

doi:10.1117/1.1431557

1 March 2002 Waveguide grating (moire) microinterferometer for inplane displacement/strain field investigation

Leszek A. Salbut

Author Affiliations +

Optical Engineering, Vol. 41, Issue 3, (March 2002). https://doi.org/10.1117/1.1431557

Analysis of microelements requires a local approach to their mechanical behavior and material constants distribution. This requires modern full-field measurement tools, among which automated grating (moire) interferometry (GMI) is one of the best-suited measurement methods. A new type of grating microinterferometer is presented. It is based on the concept of an achromatic grating interferometer combined with a glass block waveguide and designed to work with standard optical microscopes. The various types of waveguide plates are presented and discussed. The interferogram obtained may be modified and design for analysis by means of carrier frequency phase shifting methods. The methodology of measurement is described. The usefulness of the microinterferometer is demonstrated by an example of in-plane displacement and strain distribution determination in the two-phase steel polycrystalline material. 0-

©(2002) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Leszek A. Salbut "Waveguide grating (moire) microinterferometer for inplane displacement/strain field investigation," Optical Engineering 41(3), (1 March 2002). https://doi.org/10.1117/1.1431557

Published: 1 March 2002

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