Talks and Poster Presentations (with Proceedings-Entry):
J. Kellner, H. Schweinzer:
"Piezoceramic Ultrasound Transducer Enabling Broadband Trasmission for 3D Scene Analysis in Air";
Talk: Sensor+Test Conference,
Nürnberg, Deutschland;
2009-05-26
- 2009-05-28; in: "Proceedings Sensor 2009",
Vol. 1
(2009),
53
- 58.
English abstract:
Frequency-modulated ultrasound signals like chirp-signals show variations in phase at the different transmission angles. Analyzing the phase of ultrasound chirp-echoes enables to accurately determine distance and polar angle to the point of reflection. Though single piezoceramic ultrasound transducers have a small bandwidth, an ultrasound transducer made of a combination of piezoceramic elements with different resonance frequencies as presented in this work enables transmission of braoadband chirpsignals and shows the required rotational symmetry.
Created from the Publication Database of the Vienna University of Technology.