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A frequency-response-based method of sound velocity measurement in an impedance tube
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Wang, Wenfei, Thomas, P. J. (Peter J.) and Wang, Tongqing (2017) A frequency-response-based method of sound velocity measurement in an impedance tube. Measurement Science and Technology, 28 (4). 045007. doi:10.1088/1361-6501/aa5ae0 ISSN 0957-0233.
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Official URL: http://dx.doi.org/10.1088/1361-6501/aa5ae0
Abstract
A stable and accurate new method for the measurement of the velocity of sound is proposed. The method is based on the characteristics of the frequency response measured at different positions in an impedance tube and it eliminates adverse effects caused by reflections from the transmitting transducer at the bottom of the impedance tube. A series of experiments is conducted, at different water temperatures, different positions in the impedance tube and under constant pressure, to validate the feasibility and stability of the new method. The new technique is also extended to hydrostatic pressure conditions with stable sound velocity. Our method generates an accurate measurement result in comparison to the estimated or average value obtained with currently existing methods. The novel method is suitable to be widely used in underwater acoustics.
Item Type: | Journal Article | ||||||
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Subjects: | Q Science > QC Physics | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Library of Congress Subject Headings (LCSH): | Underwater acoustics -- Mathematical models, Sound -- Speed | ||||||
Journal or Publication Title: | Measurement Science and Technology | ||||||
Publisher: | Institute of Physics Publishing Ltd. | ||||||
ISSN: | 0957-0233 | ||||||
Official Date: | 16 February 2017 | ||||||
Dates: |
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Volume: | 28 | ||||||
Number: | 4 | ||||||
Article Number: | 045007 | ||||||
DOI: | 10.1088/1361-6501/aa5ae0 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Date of first compliant deposit: | 12 June 2017 | ||||||
Date of first compliant Open Access: | 12 June 2017 | ||||||
Funder: | Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC) | ||||||
Grant number: | No. 2016M591046 | ||||||
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