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Sensors 2016, 16(11), 1905; doi:10.3390/s16111905

Ultrasonic Al2O3 Ceramic Thermometry in High-Temperature Oxidation Environment

1
Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
2
North Automatic Control Technique Research Institute, Taiyuan 030006, China
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 23 September 2016 / Revised: 27 October 2016 / Accepted: 7 November 2016 / Published: 11 November 2016
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [4887 KB, uploaded 11 November 2016]   |  

Abstract

In this study, an ultrasonic temperature measurement system was designed with Al2O3 high-temperature ceramic as an acoustic waveguide sensor and preliminarily tested in a high-temperature oxidation environment. The test results indicated that the system can indeed work stably in high-temperature environments. The relationship between the temperature and delay time of 26 °C–1600 °C ceramic materials was also determined in order to fully elucidate the high-temperature oxidation of the proposed waveguide sensor and to lay a foundation for the further application of this system in temperatures as high as 2000 °C. View Full-Text
Keywords: ultrasonic thermometer; high-temperature oxidation; delay time; ultrasonic wavelets ultrasonic thermometer; high-temperature oxidation; delay time; ultrasonic wavelets
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Wei, Y.; Gao, Y.; Xiao, Z.; Wang, G.; Tian, M.; Liang, H. Ultrasonic Al2O3 Ceramic Thermometry in High-Temperature Oxidation Environment. Sensors 2016, 16, 1905.

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