Title :
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
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;
Conference_Titel :
Frequency Control Symposium, 2008 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-1794-0
Electronic_ISBN :
1075-6787
DOI :
10.1109/FREQ.2008.4622952
