Surface roughness mapping of large area curved aerospace components through spectral correlation of speckle images

• Main Authors: Haridas, Aswin, Prabhathan, P., Pulkit, K., Chan, Kelvin, Murukeshan, Vadakke Matham
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Mechanical engineering; Surface Roughness; Optical Metrology
• Online Access: https://hdl.handle.net/10356/143976
• Institution: Nanyang Technological University

Measurement of surface roughness over a large area is a very challenging task due to the limitations with the existing techniques. Surface roughness measurement techniques including stylus and microscopy are limited by point-by-point data acquisition and a small field of view (FOV). In effect, any s...