C9-a4 - Exploring the Potential of Plasma Micro-Hollow Cathode Transducers for Air-Coupled Ultrasonic Non-Destructive Testing
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- C9-a - NDT and NDE Transducers
- Author(s)
- D. Solodov, N. Nazari, M. Gaal - Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin (Germany), H. Kersten - Christian-Albrechts-Universität zu Kiel, Kiel (Germany)
- Pages
- 219 - 222
- DOI
- 10.5162/Ultrasonic2025/C9-a4
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
This study examines the feasibility of using Microhollow Cathode (MHC) plasma transducers as contactless, broadband sources for air-coupled ultrasonic nondestructive testing (NDT). To improve the detection of small or weakly bonded defects, the approach integrates Local Defect Resonance (LDR), which amplifies flaw responses at their natural vibrational frequencies.