P1.6 - Optimization Design of Basic Structure of Dry Coupling Shear Wave Probe Based on Piezoelectric Double-laminated Vibrator
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Posters
- Chapter
- Posters
- Author(s)
- Y. Lu, Y. Zhou, C. Zhu, X. Cao, H. Chen, D. Chen, Z. Sun - Chinese Academy of Sciences, Beijing (China)
- Pages
- 315 - 318
- DOI
- 10.5162/Ultrasonic2025/P1.6
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
Conventional surface-coupled probes require good contact surface flatness and efficient coupling agents, while the absence of these conditions is often encountered in field tests. In this paper, we propose a dry coupling shear wave probe based on the double-laminated vibrator. The resonant frequencies calculated by two beam theories are compared with the simulation values, and the importance of selecting the appropriate theoretical model for optimization is discussed. Simultaneously, we discuss the backing layer suitable for the small-sized low-frequency probe in this paper. Instead of the solid-state backing, we select the high-viscosity liquid damping and preliminarily verify its effect through the testing.