TY - JOUR
T1 - Differentiate low impedance media in closed steel tank using ultrasonic wave tunneling
AU - Wang, Chunying
AU - Chen, Zhaojiang
AU - Cao, Wenwu
N1 - Funding Information:
Financial support for this work was provided by the National Basic Key Research Program of China (No. 2013CB632900 ), the NIH under grant No. P41-BE2182 and one of the authors C. Wang would like to acknowledge the Chinese Scholarship Council for the sponsorship of oversea joint training Ph.D. program.
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2018/1
Y1 - 2018/1
N2 - Ultrasonic wave tunneling through seriously mismatched media, such as steel and water, is possible only when the frequency matches the resonance of the steel plate. But it is nearly impossible to realize continuous wave tunneling if the low acoustic impedance media is air because the transducer frequency cannot be made so accurate. The issue might be resolved using tone-burst signals. Using finite element simulations, we found that for air media when the cycle number is 20, the −6 dB bandwidth of energy transmission increased from 0.001% to 5.9% compared with that of continuous waves. We show that the tunneling waves can give us enough information to distinguish low acoustic impedance media inside a steel tank.
AB - Ultrasonic wave tunneling through seriously mismatched media, such as steel and water, is possible only when the frequency matches the resonance of the steel plate. But it is nearly impossible to realize continuous wave tunneling if the low acoustic impedance media is air because the transducer frequency cannot be made so accurate. The issue might be resolved using tone-burst signals. Using finite element simulations, we found that for air media when the cycle number is 20, the −6 dB bandwidth of energy transmission increased from 0.001% to 5.9% compared with that of continuous waves. We show that the tunneling waves can give us enough information to distinguish low acoustic impedance media inside a steel tank.
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U2 - 10.1016/j.ultras.2017.07.018
DO - 10.1016/j.ultras.2017.07.018
M3 - Article
C2 - 28803160
AN - SCOPUS:85032001806
SN - 0041-624X
VL - 82
SP - 130
EP - 133
JO - Ultrasonics
JF - Ultrasonics
ER -