AOS produces high performance Phased Array and Multi-channel electronics which provide flexible solutions to be able to develop any kind of process.  Our products have been referenced in many research and industrial articles and studies.  Here are some examples of articles where our products are referenced or cited:


Additive Manufacturing

Efficient volumetric non-destructive testing methods for additively manufactured parts
A-F. Obaton, B. Butsch, E. Carcreff, N. Laroche, J. Tarr & A. Donmez
Welding in the World. June 10 2020

Evaluation of Nondestructive Volumetric Testing Methods for Additively Manufactured Parts
A. Obaton, A. Obaton, B. Butsch, S. McDonough, E. Carcreff, N. Laroche, Y. Gaillard, J. B. Tarr, P. Bouvet, R. Cruz, and A. Donmez, “Evaluation of Nondestructive Volumetric Testing Methods for Additively Manufactured Parts,” in Structural Integrity of Additive Manufactured Parts, ed. N. Shamsaei, S. Daniewicz, N. Hrabe, S. Beretta, J. Waller, and M. Seifi (West Conshohocken, PA: ASTM International, 2020), 51-91.

Phased array ultrasonic testing of micro-flaws in additive manufactured titanium block
Xiaohui Wang, Wentao Li, Yang Li, Zhenggan Zhou, Jun-Jie Zhang, Fengjin Zhu, Zhen Miao
Materials Research Express (2020),

Towards defect monitoring for metallic additive manufacturing components using phased array ultrasonic testing
Chabot, A., Laroche, N., Carcreff, E., Rauch, M., Hascoët, J.-Y.
Journal of Intelligent Manufacturing (2019).

Fast Ultrasonic Imaging with Total Focusing Method (TFM) for Inspection of Additively Manufactured Polymer Composite Component
H. Taheri, L. Koester, T. Bigelow, L.J. Bond, D. Braconnier, E. Carcreff, G. Dao, A. Caulder, A. Hassen
27th ASNT Research Symposium (2018), 212-220.  (link)

General NDT

Transformative Technologies And What They Mean For Inspection
Authors: Dr. Deborah L. Hopkins, Dominique Braconnier
Quality Magazine, February 1, 2018

Imaging Techniques

Full Matrix Capture and Total Focusing Method: The Next Evolution in Ultrasonic Testing
Author: Alan Caulder
Materials Evaluation, Volume 76, Issue 5,  May 2018

Signal and Image Processing

An inverse approach for ultrasonic imaging from full matrix capture data. Application to resolution enhancement in NDT.
Nans Laroche, Sébastien Bourguignon, Ewen Carcreff, Jerome Idier, Aroune Duclos
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control ( Early Access ) 27 April 2020

Fast inverse approach for the deconvolution of ultrasonic TFM images using a spatially varying PSF in NDT
N. Laroche, S. Bourguignon, E. Carcreff, J. Idier and A. Duclos
IEEE International Ultrasonics Symposium (IUS), Glasgow, United Kingdom, 2019, pp. 1985-1988. doi: 10.1109/ULTSYM.2019.8925692,

A super-resolution approach of the total focusing method for resolving close flaws
N. Laroche, E. Carcreff, D. Braconnier, S. Bourguignon, J. Idier, and A. Duclos
Quantitative Nondestructive Evaluation, 2019

Ultrasonic imaging of irregularly shaped notches based on elastic reverse time migration
Jing Rao, Abhishek SainiJizhong Yang, Madis Ratassepp, Zheng Fan
NDT & E International, Volume 107, Article 102135, October 2019

An Inverse Approach for Ultrasonic Imaging by Total Focusing Point for Close Reflectors Separation
Nans Laroche, Ewen Carcreff, Sébastien Bourguignon, Jérôme Idier, Aroune Duclos
Published in: 2018 IEEE International Ultrasonics Symposium (IUS)

Sparse Recovery of Strong Reflectors with an Application to Non-Destructive Evaluation
Eric Bezzam, Adrien Besson, Hanjie Pan, Dimitris Perdios, Jean-Philippe Thiran, Martin Vetterli
Published in: 2018 IEEE International Ultrasonics Symposium (IUS)

Cryo-Ultrasonic NDE: Ice–Cold Ultrasonic Waves for the Detection of Damage in Complex-Shaped Engineering Components
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control (Volume: 65, Issue: 4, April 2018)


Video Presentation Courtesy of:  Ultrasonic Imaging Laboratory; University of Cincinnati


Improvement of the total focusing method using an inverse problem approach
Ewen Carcreff, Nans Laroche, Dominique Braconnier, Aroune Duclos, Sébastien Bourguignon
Published in: 2017 IEEE International Ultrasonics Symposium (IUS)

Pulse-stream Models in Time-of-flight Imaging
2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2018.

Non-Linear Acoustics

Nonlinear ultrasonic phased array with fixed-voltage fundamental wave amplitude difference for high-selectivity imaging of closed cracks
Yoshikazu OharaHiromichi NakajimaSylvain HaupertToshihiro Tsuji,  Tsuyoshi Mihara
The Journal of the Acoustical Society of America, Volume 146, Page 266, July 2019

Ultrasonic imaging of nonlinear scatterers buried in a medium
Sylvain Haupert, Guillaume Renaud, Andreas Schumm 
NDT & E International Volume 87, April 2017, Pages 1-6

Fundamental wave amplitude difference imaging for detection and characterization of embedded cracks
Sylvain Haupert, Yoshikazu Ohara, Ewen Carcreff, Guillaume Renaud 
Ultrasonics, Volume 96, July 2019, Pages 132-139

Keywords: Ultrasonic imaging; Amplitude modulation; Phased array; Nonlinear scatterers; Fatigue crack; Thermal crack; Fundamental wave amplitude difference (FAD); Fundamental amplitude subtraction

Robotics and Automation

Total Focusing Method (TFM) for Automated Pipeline Girthweld Inspection
Dominique Braconnier, Ewen Carceff, Rémi Lallement, Alan Cauder, Larbi Hallal
Publication: NDT in Canada 2017, June 6-8, Quebec (NDT Canada 2017)

Compact, Rugged Ultrasonics

AOS introduces OEM-PA LITE Journal, December, 2016

NDT Accessories

New Phased Array Probe Switch from AOS Journal, Issue: 2017-07