Research and Implementation of a 1800°C Sapphire Ultrasonic Thermometer
A sapphire ultrasonic temperature sensor was produced in this study which possessed working stability, antioxidation properties, and small acoustic-signal attenuation. A method was developed to solve the problems of long periods (>0.5 h) and ultrahigh temperature (1800°C) in tests. The sensor ado...
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| Veröffentlicht in: | Journal of sensors 2017, Vol.2017 (2017), p.1-7 |
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| container_title | Journal of sensors |
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| creator | Xue, Hongxin Wang, Gao Liu, Zhengguang Yang, Lu Yang, Fengbao Liang, Haijian Wei, Yanlong |
| description | A sapphire ultrasonic temperature sensor was produced in this study which possessed working stability, antioxidation properties, and small acoustic-signal attenuation. A method was developed to solve the problems of long periods (>0.5 h) and ultrahigh temperature (1800°C) in tests. The sensor adopted here had good sound transmission performance as well as the high thermal conductivity of sapphire single crystals (Al2O3), as ultrasonic waveguides. The ultrasonic waveguide was produced by the method of the laser-heated pedestal growth (LHPG method). Calibration experiments in a high temperature furnace found that, at high temperatures and long exposure, sapphire ultrasonic temperature sensors had good stability and repeatability, and it survived in 1600°C for 360 min. This sapphire ultrasonic temperature sensor has potential for applications in aircraft engines where monitoring of high temperatures is very important. |
| doi_str_mv | 10.1155/2017/9710763 |
| format | Article |
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A method was developed to solve the problems of long periods (>0.5 h) and ultrahigh temperature (1800°C) in tests. The sensor adopted here had good sound transmission performance as well as the high thermal conductivity of sapphire single crystals (Al2O3), as ultrasonic waveguides. The ultrasonic waveguide was produced by the method of the laser-heated pedestal growth (LHPG method). Calibration experiments in a high temperature furnace found that, at high temperatures and long exposure, sapphire ultrasonic temperature sensors had good stability and repeatability, and it survived in 1600°C for 360 min. This sapphire ultrasonic temperature sensor has potential for applications in aircraft engines where monitoring of high temperatures is very important.</description><identifier>ISSN: 1687-725X</identifier><identifier>EISSN: 1687-7268</identifier><identifier>DOI: 10.1155/2017/9710763</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Publishing Corporation</publisher><subject>Acoustic attenuation ; Acoustic properties ; Acoustics ; Aircraft engines ; Aluminum oxide ; High temperature ; Laser beam heating ; Optics ; Sapphire ; Sensors ; Single crystals ; Sound transmission ; Stability ; Temperature sensors ; Thermal conductivity ; Thermometers ; Ultrahigh temperature ; Ultrasonic transducers ; Velocity ; Waveguides</subject><ispartof>Journal of sensors, 2017, Vol.2017 (2017), p.1-7</ispartof><rights>Copyright © 2017 Haijian Liang et al.</rights><rights>Copyright © 2017 Haijian Liang et al.; 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.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4083-31bbf820feb219fd5d47e10de5fd60225dcc7360cc37ac22e67bf5601121695e3</citedby><cites>FETCH-LOGICAL-c4083-31bbf820feb219fd5d47e10de5fd60225dcc7360cc37ac22e67bf5601121695e3</cites><orcidid>0000-0003-2185-0648</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4009,27902,27903,27904</link.rule.ids></links><search><contributor>Evoy, Stephane</contributor><creatorcontrib>Xue, Hongxin</creatorcontrib><creatorcontrib>Wang, Gao</creatorcontrib><creatorcontrib>Liu, Zhengguang</creatorcontrib><creatorcontrib>Yang, Lu</creatorcontrib><creatorcontrib>Yang, Fengbao</creatorcontrib><creatorcontrib>Liang, Haijian</creatorcontrib><creatorcontrib>Wei, Yanlong</creatorcontrib><title>Research and Implementation of a 1800°C Sapphire Ultrasonic Thermometer</title><title>Journal of sensors</title><description>A sapphire ultrasonic temperature sensor was produced in this study which possessed working stability, antioxidation properties, and small acoustic-signal attenuation. 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| source | Wiley-Blackwell Open Access Titles; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Acoustic attenuation Acoustic properties Acoustics Aircraft engines Aluminum oxide High temperature Laser beam heating Optics Sapphire Sensors Single crystals Sound transmission Stability Temperature sensors Thermal conductivity Thermometers Ultrahigh temperature Ultrasonic transducers Velocity Waveguides |
| title | Research and Implementation of a 1800°C Sapphire Ultrasonic Thermometer |
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