22 August 2016


Team expertise

The ultrasound team is composed of 3 professors (Patrice Masson, Philippe Micheau and Ahmed Maslouhi), 1 research associate (Nicolas Quaegebeur) and 5 to 10 graduate students.

The ultrasound team is essentially funded via the Natural Sciences and Engineering Research Council of Canada (NSERC) and research contracts with academic and industrial partners (Bombardier Aerospace, Defence Research and Development Canada, L-3 MAS, Olympus NDT, CRIAQ-Consortium for Research and Innovation in Aerospace in Québecm, Abzac Canada, Pragma NDT, Ungava Tech.).

The expertise of the Ultrasound team draws upon 10 years of experiences in Non-Destructive Testing (NDT), Structural Health Monitoring (SHM) and Biomedical applications. Research topics include:

  • Structural Health Monitoring of aerospace structures using Guided Waves (GW).
  • Design of dedicated transducers for Guided Waves (GW) generation and measurement.
  • Development of imaging algorithms for phased-array transducers with application to Structural Health Monitoring, Non-Destructive Testing, and medical imaging.
  • Non-contact generation and measurement of ultrasound waves (laser Vibrometer, air-coupled transducers).
  • Design of embedded electronics for ultrasound inspection.


Past and current R&D projects

Applications for the aerospace (aircraft inspection), consumer electronics or manufacturing industries have been realized in the past 10 years. Among those projects, the following realizations of R&D projects have been carried out in the past 10 years:

Non-Destructive Testing of Cardboard tube
"orientation":"1"}" data-image-title="Untitled-1" data-image-description="" data-medium-file="https://i2.wp.com/www.gaus.ca/wp-content/uploads/2016/08/Untitled-1.jpg?fit=253%2C170" data-large-file="https://i2.wp.com/www.gaus.ca/wp-content/uploads/2016/08/Untitled-1.jpg?fit=253%2C170" class="alignleft wp-image-308 size-thumbnail" src="http://gaus.recherche.usherbrooke.ca/wp-content/uploads/2016/08/Untitled-1-150x150.jpg" alt="Untitled-1" width="150" height="150" /> Industrial partner: Abzac Canada
Funding: NSERC grant (Engage program)
Date: 2016
Summary: Development of a non-contact inspection process of cardboard tubes for conformity certification and adjustments of the production line.
Realizations: Development of a test methodology / Design of a test bench / Signal processing / On-site experimental validation.


 CRIAQ DPHM 501: Characterization of guided wave propagation in aircraft structures
Industrial partner: Bombardier Aerospace / L-3 MAS /CRIAQ
Funding: NSERC grant (CRD program)
Date: 2012 – 2016
Summary: Development of a knowledge base for inspection of aerospace structures using guided waves
Realizations: development of a test methodology /design of dedicated ultrasound transducers / non-contact measurement and experimental analysis /software and database development (Matlab – Java)


 Touchscreen application based on guided wave reflection
Industrial partner: Ungava Tech. /Aligo innovation
Funding: NSERC grant (I2I program)
Date: 2014 – 2015
Summary: Validation and prototype development of a novel touchscreen application based on guided wave reflection.
Realizations: development of a dedicated embedded electronic platform (Zynq – FPGA) /prototype design / software development for real-time monitoring of contact /experimental validation.


 Ultrasonic thickness measurements of solidification front inside metallurgical reactor
Industrial partner: Alcan – Rio Tinto
Funding: NSERC grant (CRD program)
Date: 2012-2013
Summary: Test methodology for thickness measurement of soft material (solidification front) at high temperatures.
Realizations: Probe design / signal processing / experimental validation at high temperatures.


 Characterization of coating thickness for aerospace structures
Industrial partner: Bombardier Aerospace
Date: 2014
Summary: Development a methodology for coating estimation on complex composite parts
Realizations: Design of a dedicated probe /experimental methodology and validation


 Correlation-based imaging technique
Industrial partner: Olympus NDT /Acellent Technologies / Pragma NDT
Funding: NSERC grant (I2I program)
Date: 2012 – 2014
Summary: Validation of a novel imaging algorithm for Non-Destructive Testing and Structural Health Monitoring
Realizations: Implementation of a code for parallel computing (GPU – CUDA) / experimental validation on a realistic inspection case /patent publication


 13-PL: Advanced SHM technologies
Industrial partner: DRDC
Funding: NSERC grant (CRD program)
Date: 2010 – 2013
Summary: Demonstration of various ultrasound techniques for structural Health Monitoring of military aerospace structures
Realizations: Validation of existing piezoceramic based solutions using ultrasound guided waves / development of experimental methodology /validation and test reports.


 CRIAQ DPHM 410: In-situ SHM Sensors for Composite Structures
Industrial partner: Bombardier Aerospace / L-3 MAS /CRIAQ
Funding: NSERC grant (CRD program)
Date: 2009 – 2011
Summary: Design and integration of a SHM system for inspection of bonded composite joints
Realizations: Literature review for GW / conceptual and detailed design of SHM systems / experimental methodology and validation