Abstract
This communication reports investigation undertaken towards measurement of slope and defect detection of bent plates (rectangular and circular) using moiré deflectometry in conjunction with Fourier transform technique. For slope mapping, specimen is illuminated by collimated light from a laser. The back reflected light from the front surface of the specimen is incident on a set of two gratings placed in tandem, resulting in the formation of laterally sheared interferograms. The interferograms are recorded using a CCD (charge coupled device) camera. Direct phase measurement using Fourier transform method has been used for measurement of slope and detection of defects. The experimental setup is simple and the slope measurement and detection of defects are undertaken successfully in each case. Experimental results conclusively establish the viability of the technique. Good accuracy and precision in measurement have been achieved.
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.
