Generation of solitary acoustic impulses

Author

Zipser, L. ; Wachter, F. ; Wustling, J.-U.

Author_Institution

FB Elektrotechnik, Hochschule fur Technik und Wirtschaft (FH), Dresden, Germany

Volume

1

fYear

1996

fDate

3-6 Nov 1996

Firstpage

555

Abstract

The paper describes a method for generating extremely short airborne acoustic impulses. These impulses have a duration of only one period, similar to the well known solitons. For generating solitary acoustic impulses a narrowband acoustic transducer is needed. It should have a pronounced oscillation behaviour at the main eigenfrequency f_e. The transducer is supplied with an electric input signal, which is exactly adapted to the dynamic behaviour of the transducer. This specially formed signal has a limited duration of one period T=1/f _e. With the aid of a simple model the generation process can be explained. The theoretical results are experimentally verified and confirmed. Finally we point out on useful applications of airborne solitary acoustic impulses

Keywords

acoustic pulses; acoustic transducers; nonlinear acoustics; solitons; airborne solitary acoustic impulse generation; narrowband acoustic transducer; Acoustic measurements; Acoustic sensors; Acoustic transducers; Acoustic waves; Narrowband; Piezoelectric transducers; Shape; Signal processing; Solitons; Velocity measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 1996. Proceedings., 1996 IEEE

Conference_Location

San Antonio, TX

ISSN

1051-0117

Print_ISBN

0-7803-3615-1

Type

conf

DOI

10.1109/ULTSYM.1996.584043

Filename

584043