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Measurement using flexural ultrasonic transducers in high pressure environments
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Feeney, Andrew, Kang, Lei, Somerset, William E. and Dixon, Steve M. (2020) Measurement using flexural ultrasonic transducers in high pressure environments. In: International Congress on Ultrasonics , Bruges, Belgium , 03-06 Sep 2019 . Published in: Proceedings of meetings on acoustics , 38 doi:10.1121/2.0001091 ISSN 1939-800X.
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WRAP-measurement-using-flexural-ultrasonic-transducers-high-pressure-environments-Feeney-2020.pdf - Published Version - Requires a PDF viewer. Download (2674Kb) | Preview |
Official URL: http://dx.doi.org/10.1121/2.0001091
Abstract
The flexural ultrasonic transducer comprises a metallic membrane to which an active element such as a piezoelectric ceramic is attached. The normal modes of the membrane are exploited to generate and receive the desired ultrasonic wave. Flexural ultrasonic transducers are popular due to their ability to couple to different media without requiring matching layers. There is growing demand for ultrasound measurement using flexural ultrasonic transducers in high pressure environments, such as in gas metering. However, their sealing increases the risk of transducer deformation as the pressure level is raised, due to pressure imbalance between the internal cavity of the transducer and the external environment. In this study, a novel form of flexural ultrasonic transducer for operation in high pressure environments, those above 100 bar, is shown alongside key measurement strategies. Different methods can be used to enable pressure equalization between the internal cavity and the external environment, one of which is venting and used in this study. Dynamic performance is monitored via pitch-catch ultrasound measurement in air up to 130 bar. The results suggest the suitability of the vented transducer for operation in high pressure environments compared to the classical flexural ultrasonic transducer, constituting a significant development in ultrasonic measurement.
| Item Type: | Conference Item (Paper) | ||||||
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| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
| Library of Congress Subject Headings (LCSH): | Ultrasonic transducers, Piezoelectric ceramics , High pressure (Science) | ||||||
| Journal or Publication Title: | Proceedings of meetings on acoustics | ||||||
| Publisher: | ASA Publications | ||||||
| ISSN: | 1939-800X | ||||||
| Book Title: | 178th Meeting of the Acoustical Society of America | ||||||
| Official Date: | 18 February 2020 | ||||||
| Dates: |
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| Volume: | 38 | ||||||
| Article Number: | 045014 | ||||||
| DOI: | 10.1121/2.0001091 | ||||||
| Status: | Not Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Reuse Statement (publisher, data, author rights): | Copyright (2020) Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Proc. Mtgs. Acoust. 38, 045014 and may be found at https://asa.scitation.org/doi/abs/10.1121/2.0001091 | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
| Date of first compliant deposit: | 9 March 2020 | ||||||
| Date of first compliant Open Access: | 18 August 2020 | ||||||
| RIOXX Funder/Project Grant: |
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| Conference Paper Type: | Paper | ||||||
| Title of Event: | International Congress on Ultrasonics | ||||||
| Type of Event: | Conference | ||||||
| Location of Event: | Bruges, Belgium | ||||||
| Date(s) of Event: | 03-06 Sep 2019 |
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