Abstract
The total amount of light reflected by any portion of a smooth mirror-like surface remains the same before and after deformation. From this observation, if two intensity records of images reflected from the surface of a plate before and after loading are available, the shift of any image point due to loading is estimated by an intensity integration technique (IIT). This enables mapping of surface slope and curvature for the entire plate. The experimental values for slope and mean values for curvature by this technique agree to within 8 - 10% of the theoretical values. If the plate contains a defect the local values of curvature vary sharply. The intensity can be shown related directly to curvature and so the intensity record of the loaded defective plate displays noticeable abrupt changes in the region of defect, thus opening up possibilities for Non-Destructive Testing (NDT).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
