A12-b3 - Ultrasonic Flow Measurement Using Guided Acoustic Waves: Application of Cylindrical Modes in Pipe Systems
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- A12-b - Surface Acoustic Waves and Guided Waves
- Author(s)
- A. Backer, K. S. Drese - Coburg University of Applied Sciences and Arts, Coburg (Germany)
- Pages
- 94 - 97
- DOI
- 10.5162/Ultrasonic2025/A12-b3
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
This paper explores an alternative approach to ultrasonic flow measurement using guided acoustic waves in cylindrical modes. Unlike conventional methods with diagonal sound propagation, the entire pipe including the fluid is excited to vibrate, reducing path-dependent correction factors. A ring-shaped sensor was developed for a DN15 steel pipe. Results show a signal time shift 2.5 times greater than with Lamb wave-based sensors, adjustable over distance. This approach enables precise, non-invasive flow measurement across various pipe diameters.