Phased Array Subcommittee of DGZfP (German Society for Non-Destructive Testing) took place at Baker Hughes Digital Solutions GmbH in Hürth. Chaired by Andreas Mück, Head of Business Unit at SONOTEC GmbH and Chair of the Subcommittee, the event offered a dynamic forum for exchanging ideas and discussing current developments, challenges, and future directions in phased array technology.
New Members and a Fond Farewell
The meeting began with a warm welcome to the subcommittee’s new members: Ms. Lachtchouk and Mr. Kolkoori were officially introduced to the group. At the same time, members paid tribute to Roman Koch, a long-standing contributor whose dedication and expertise have left a lasting impact.
Focus on Practical Applications
Key discussions centered on real-world questions: When and how should phased array systems be used most effectively? What training paths are appropriate, and which qualification methods prove successful in practice? Extensive comparative studies have already been conducted at the DGZfP Training Center in Dortmund, with further case studies now being collected and evaluated.
Comparing Testing Methods
Another focal point was the comparison of phased array, TOFD, and radiographic testing. While there is no universally applicable answer to which method is “best,” practical training pieces provide valuable insights into each method’s limitations and advantages.
Phased Array Handbook Remains Up to Date
The Phased Array Handbook has now been available for five years and remains a relevant reference guide. A new edition is not currently planned; however, minor corrections identified over time are being compiled in an addendum sheet.
RoHS and the Future of Piezoelectric Materials
A key topic of discussion was the planned revision of the RoHS exemption concerning the use of lead in piezoceramics. The current draft limits the exemption to PZT materials, which could severely restrict applications such as high-temperature measurements. The subcommittee encourages all stakeholders to participate actively in the consultation process – whether through formal comments or by engaging in discussions with customers and suppliers – to help ensure that final decisions consider the full scope of technical implications.
Standards and International Committees
The leadership position for international committees on ultrasonic testing of welds is currently vacant. As a driver of innovation, Germany is well-positioned to retain this key role. Experts interested in contributing are encouraged to come forward.
Looking Ahead
The next meeting of the DGZfP Phased Array Subcommittee will take place on September 25, 2025, at Müller & Medenbach in Gladbeck, directly following the seminar of the Leak Detection Technical Committee.
Special thanks go to the hosts and organizers, Mr. Büchler, Mr. Falter, and Mr. Bruch, for a well-coordinated event and inspiring discussions.
