Gm Global Technolgoy Operations, Inc.

Oakland University

Nan Xu

Lianxiang Yang

Leonid Charles Lev

Randy Gu

Xin Xie

Embodiments of a shearography system may include light sources configured to produce beams of light to illuminate a test area. Each of the beams of light may include a different wavelength. A camera may be configured to obtain intensity information corresponding to reflections of the lights off of the test area. An optical shearing device may be disposed in an optical path between the light sources and the camera and the optical shearing device may be configured to provide a shearing angle.

Spatial phase-shift shearography system for non-destructive testing and strain measurement

A method for detecting the integrity of a bond of a multi-piece work piece includes capturing a first image of the work piece, stressing the work piece, capturing a stressed image of the work piece, and comparing the first image of the work piece with the stressed image of the work piece to determine the integrity of the bond.

Growing community of inventors

Auburn Hills, MI, United States of America

Nan Xu