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HiFFUTs for high temperature ultrasound

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Feeney, Andrew, Kang, Lei and Dixon, Steve M. (2018) HiFFUTs for high temperature ultrasound. In: International Congress on Ultrasonics (ICU, 18-20 Dec 2017, Honolulu, Hawaii. Published in: Proceedings of meetings on acoustics (ICU), 32 (1). doi:10.1121/2.0000685 ISSN 1939-800X.

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Official URL: http://dx.doi.org/10.1121/2.0000685

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Abstract

Flexural ultrasonic transducers have been widely used as proximity sensors and as part of industrial metrology systems. However, there is demand from industry for these transducers to have the capability
to operate in both liquid and gas, at temperatures of 100-200°C and higher, significantly greater than those tolerated by current flexural transducers. Furthermore, flexural transducers tend to be designed for
operation up to around 50 kHz, and the ability to operate at higher frequencies will open up new application and research areas. A limitation of current flexural transducers is the electromechanical
driving element, usually a lead zirconate titanate piezoelectric ceramic, which experiences significantly reduced performance as temperature is increased. This investigation proposes a new type of flexural transducer, the HiFFUT, a high frequency flexural ultrasonic transducer, comprising a bismuth titanate ceramic for operation at high temperatures, that could be replaced by another suitable high Curie temperature piezoelectric material if required, bonded to the membrane with a high temperature adhesive. The dynamic characteristics of the HiFFUT are studied as a function of temperature, providing insights into its usefulness for industrial applications.

Item Type: Conference Item (Paper)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Ultrasonic transducers, Bismuth -- Industrial applications, Metrology
Journal or Publication Title: Proceedings of meetings on acoustics (ICU)
Publisher: ASA Publications
ISSN: 1939-800X
Official Date: 31 March 2018
Dates:
DateEvent
31 March 2018Published
1 February 2018Accepted
2017Created
Volume: 32
Number: 1
Article Number: 045003
DOI: 10.1121/2.0000685
Status: Not Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Description:

Physical Acoustics: Paper ICU2017 - 20

Date of first compliant deposit: 19 March 2018
Date of first compliant Open Access: 30 September 2018
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
EP/N025393/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
Conference Paper Type: Paper
Title of Event: International Congress on Ultrasonics (ICU
Type of Event: Conference
Location of Event: 18-20 Dec 2017
Date(s) of Event: Honolulu, Hawaii
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