Wave propagation in an acoustic wave guide sensor for liquids driven by pulsed excitation of surface acoustic waves

Author

Lindner, G. ; Faustmann, H. ; Krempel, S. ; Münch, M. ; Rothballer, S. ; Singer, F.

Author_Institution

Inst. of Sensor & Actuator Technol., Coburg Univ. of Appl. Sci., Coburg

fYear

2008

fDate

19-21 May 2008

Firstpage

39

Lastpage

43

Abstract

The wave propagation in an acoustic wave guide sensor filled with liquids and driven by pulsed excitation of Lamb waves on glass plates forming the boundaries of the wave guide has been analyzed with respect to the formation of different wave groups in the receiver signal. The results of model calculations of the wave propagation were compared with measured transit times. Evidence is provided for the capability of this sensor with respect to the detection of gas bubbles in liquids and the tracking of their movement.

Keywords

acoustic waveguides; bubbles; surface acoustic waves; ultrasonic transducers; Lamb waves pulsed excitation; acoustic wave guide sensor; acoustic wave propagation; gas bubbles detection; glass plates; liquids characterization; measured transit times; movement tracking; receiver signal; surface acoustic waves pulsed excitation; ultrasonic techniques; Acoustic propagation; Acoustic pulses; Acoustic sensors; Acoustic waves; Gas detectors; Glass; Liquids; Signal analysis; Surface acoustic waves; Tracking;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium, 2008 IEEE International

Conference_Location

Honolulu, HI

ISSN

1075-6787

Print_ISBN

978-1-4244-1794-0

Electronic_ISBN

1075-6787

Type

conf

DOI

10.1109/FREQ.2008.4622952

Filename

4622952