Phased Array UT III
Tracks
BREAKOUT C - SOUTH PACIFIC
Audience - General Interest
Audience - Management
Audience - Technicians
Industry: Aerospace: In-Space, Aviation
Industry: Energy: Petroleum, Renewable, Power Generation
Industry: Infrastructure: Construction, Amusements, Maintenance
Industry: Manufacturing: Fabrication, Advanced, Additive
Industry: NDT Equipment: Development, Production, Distribution
Industry: NDT Services: Services, Inspection
Presentation Topic Level - Advanced
Presentation Topic Level - Intermediate
| Thursday, May 14, 2026 |
| 8:00 AM - 9:00 AM |
| South Pacific |
Speaker
Anandamurugan Subramanian
Director Of Software Engineering
Waygate Technologies, Baker Hughes
Sectorial Plane Wave Imaging: A High-Speed, Efficient Approach for Industrial Weld Inspection
Abstract
This study investigates the practical impact of image focusing strategies in ultrasonic weld inspection, providing a direct comparison of the Total Focusing Method (TFM), Plane Wave Imaging (PWI), and Sectorial Plane Wave Imaging (SPWI). TFM achieves complete pixel-wise focusing, PWI focuses reception across multiple plane wave transmissions, and SPWI further streamlines the process by focusing reception on a single plane wave transmission per sector. This progressive reduction in focusing is offset by a substantial improvement in processing speed, with SPWI offering the fastest performance among the three techniques.
Experimental evaluations were conducted on steel weld specimens containing a range of defects-including lack of sidewall fusion, slag, porosity, toe crack, centreline crack, and root crack using TT-T and TT-TT full-skip modes. SPWI successfully identified all studied weld defects, including those requiring superior image focusing such as weld porosity, with image quality and defect positioning comparable to TFM and PWI.
SPWI differs from Dynamic Depth Focusing (DDF) in its data acquisition and post-processing approach. While DDF relies on delayed firing and reception with multiple transmissions and reception delay laws to achieve focusing at different depths often limited by hardware constraints SPWI stores individual element responses for each plane wave excitation and performs pixel-wise image reconstruction in real time processing. This enables SPWI to achieve superior image resolution and multimode capability with significantly fewer transmissions and higher frame rates than DDF.
Overall, SPWI emerges as a viable advanced multimode inspection technique, enabling faster weld inspections without significant compromise in image quality. These results support the adoption of SPWI as an efficient alternative to conventional phased array sector scan, PWI and TFM for industrial weld inspection for faster inspection, where inspection speed and operational efficiency are critical.
Experimental evaluations were conducted on steel weld specimens containing a range of defects-including lack of sidewall fusion, slag, porosity, toe crack, centreline crack, and root crack using TT-T and TT-TT full-skip modes. SPWI successfully identified all studied weld defects, including those requiring superior image focusing such as weld porosity, with image quality and defect positioning comparable to TFM and PWI.
SPWI differs from Dynamic Depth Focusing (DDF) in its data acquisition and post-processing approach. While DDF relies on delayed firing and reception with multiple transmissions and reception delay laws to achieve focusing at different depths often limited by hardware constraints SPWI stores individual element responses for each plane wave excitation and performs pixel-wise image reconstruction in real time processing. This enables SPWI to achieve superior image resolution and multimode capability with significantly fewer transmissions and higher frame rates than DDF.
Overall, SPWI emerges as a viable advanced multimode inspection technique, enabling faster weld inspections without significant compromise in image quality. These results support the adoption of SPWI as an efficient alternative to conventional phased array sector scan, PWI and TFM for industrial weld inspection for faster inspection, where inspection speed and operational efficiency are critical.
Biography
Anandamurugan Subramanian is a Director of Software Engineering based in Bangalore, India. With over 20+ years of expertise in advanced ultrasonic technologies, Anandamurugan has led Engineering and Global product development initiatives, including Mentor UT and Krautkramer USM 100. Currently leading the research and development team in Ultrasound products and driving the innovation in AI for Ultrasonic Testing. Anandamurugan holds 6 patents in Phased Array Ultrasonic Testing, has published 10+ papers in international journals, and presented 30+ papers at global NDT conferences. Holds ASNT Level III in Ultrasonic Testing and Masters in NDT.
Jeremy Gaumer
Applications Engineer
TPAC
Rastered Immersion UT Inspections with Adaptive TFM & PWI
Abstract
This presentation introduces advanced methodologies for ultrasonic testing (UT) in immersion applications using raster scanning combined with Adaptive Total Focusing Method (ATFM) and Adaptive Plane Wave Imaging (APWI). Traditional phased array techniques rely on pre-calculated focal laws, which can fail on complex or unknown geometries, leading to poor resolution and inaccurate depth measurements. Adaptive algorithms overcome these limitations by dynamically estimating surface profiles and recalculating focal laws in real time, enabling precise imaging even on curved or irregular parts. We demonstrate the integration of these adaptive techniques with high-speed rastered immersion scanning for plates and billets, achieving significant improvements in resolution and inspection efficiency. Case studies include stainless steel, titanium, and nickel calibration components, relevant to aerospace, jet engine, billet, plate, and additive manufacturing, to name just a few possible applications. The results confirm that adaptive imaging enhances reliability and throughput for industrial NDT, paving the way for next-generation immersion inspection systems.
Biography
Gavin Dao is the Director of Business Development for AOS/TPAC Group who specializes in NDT solutions and the development of instrumentation based on Phased Array Ultrasound and Full Matrix Capture/ Total Focusing Method technology. Gavin’s background is in Electrical Engineering and Computer Science, and has been a part of R&D of multiple generations of phased array equipment for 18 years. He actively collaborates with various NDT companies in creating new inspection tools and application solutions.
Prasanth Geddam
Sr Product Marketing Leader
Evident Singapore
Advances in Automated Ultrasonic Testing for Pipeline Girth Welds
Abstract
Evolution of Automated Ultrasonic Testing (AUT) continues to redefine how pipeline girth welds are inspected. This presentation introduces the PipeWIZARD iX, Evident’s next-generation AUT solution designed specifically for girth weld inspection—bringing together enhanced mechanics, intelligent software, and workflow optimized for real-world field conditions. With a compact, integrated design and user-friendly setup, PipeWIZARD iX simplifies deployment without compromising inspection quality.
On the software side, PipeWIZARD iX streamlines the inspection process with features such as automated calibration, assisted defect sizing, and automatic indication detection. Integrated BeamTool support enables efficient zonal setup creation, allowing operators to configure scans quickly and accurately.
The platform also supports open data formats and customizable reporting, ensuring seamless integration into asset integrity workflows and inspection databases. These capabilities not only improve productivity in the field but also enhance consistency, traceability, and data usability for advanced post processing. These enhancements mark a clear advancement in AUT technology—delivering an agile, intelligent, and operator-friendly solution that keeps pace with the demands of modern pipeline construction.
On the software side, PipeWIZARD iX streamlines the inspection process with features such as automated calibration, assisted defect sizing, and automatic indication detection. Integrated BeamTool support enables efficient zonal setup creation, allowing operators to configure scans quickly and accurately.
The platform also supports open data formats and customizable reporting, ensuring seamless integration into asset integrity workflows and inspection databases. These capabilities not only improve productivity in the field but also enhance consistency, traceability, and data usability for advanced post processing. These enhancements mark a clear advancement in AUT technology—delivering an agile, intelligent, and operator-friendly solution that keeps pace with the demands of modern pipeline construction.
Biography
Prasanth joined Olympus/Evident in 2019 as an NDT Specialist and is now the Senior Product Marketing Leader for Asia-Pacific region. He holds a Master’s degree in Metallurgical Engineering from IIT Kharagpur and is certified to ASNT and PCN Level III in advanced UT methods. With over a decade of experience in advanced ultrasonic inspection, he has built strong expertise in high-quality inspection, training, and consultancy across Oil & Gas, Power Generation, Aerospace, and Shipbuilding. In his current role, he leads advanced application development, feasibility studies, and technical support including automated and robotic inspection systems, driving innovation across the APAC region.