Using Lasers to Make Our Infrastructure Safer

On December 06, 2023

Researcher: Rishabh Bajaj

Description: Wonder how we can use laser sensors on smartphones to make sure our civil infrastructure stays resilient and safe? Rishabh Bajaj, a PhD student at CViSS, in collaboration with the Ministry of Transportation of Ontario (MTO) is using LiDAR sensors on smartphones to evaluate the surface roughness of concrete which consequently affects the shear strength of structures.

Lamb Wave Mode Decomposition Technique

On December 11, 2010

Researcher: Chul Min Yeum

Description: This research is to propose a new method for decomposing Lamb wave modes using concentric ring and circular PZTs. The proposed mode decomposition technique is formulated by solving 3D Lamb wave propagation equations considering the PZT size and shape, and this technique requires a specially designed dual PZT composed of concentric ring and circular PZTs. The effectiveness of the proposed technique for the Lamb wave mode decomposition is investigated through numerical simulation and experimental tests performed on an aluminum plate.

Project page: Github