A3.4 - Annular Arrays for Novel Measurement Methods
- AMA Conferences 2015
2015-05-19 - 2015-05-21
- Proceedings SENSOR 2015
- A3 - Ultrasound I
- E. Kühnicke, M. Wolf, S. Kümmritz, M. Lenz - Dresden University of Technology, Dresden (Germany)
- 89 - 94
The paper shows how the precise knowledge of the sound field of an ultrasonic annular array can contribute to the development of novel measuring techniques. Emphasis is placed on a) a noninvasive method for sound velocity measurements in fluids using the echo signals from scattering particles, b) a non-invasive method for the combined determination of thickness and sound velocity in layered structures by using a novel focusing technique, and c) a non-scanning curvature measurement method exploiting the wave front curvature of a reflected wave. To demonstrate the methods, the principles as well as results from simulations and measurements are discussed.