Method for reconstructing nonuniform temperature field inside structure and based on transient-state thermal boundary inversion
The invention discloses a method for reconstructing a nonuniform temperature field inside structure and based on transient-state thermal boundary inversion. The method includes that on the basis of transition time of ultrasonic pulse echo, transient-state thermal boundary conditions causing temperat...
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| creator | DU YANXIA SHI YOUAN WEI DONG GUI YEWEI ZHANG HAOYUAN GUAN RUI QIU BO ZENG LEI |
| description | The invention discloses a method for reconstructing a nonuniform temperature field inside structure and based on transient-state thermal boundary inversion. The method includes that on the basis of transition time of ultrasonic pulse echo, transient-state thermal boundary conditions causing temperature change of the structure is inverted; on this basis, non-steady-state temperature distribution inside the structure is reconstructed by solving a thermal conduction equation. Compared with existing ultrasonic temperature measuring methods, the method has the advantages that ultrasonically-detected inside temperature is not acquired directly through transition time and is acquired through inverted transient-state thermal boundary conditions, so that temperature in the method is not a single average value on a transmission path any more but specific temperature distribution, and the method is higher in temperature resolution and higher in stability and can realize realtime and high-accuracy reconstruction of temperature distribution inside solid structure at different moments. |
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The method includes that on the basis of transition time of ultrasonic pulse echo, transient-state thermal boundary conditions causing temperature change of the structure is inverted; on this basis, non-steady-state temperature distribution inside the structure is reconstructed by solving a thermal conduction equation. Compared with existing ultrasonic temperature measuring methods, the method has the advantages that ultrasonically-detected inside temperature is not acquired directly through transition time and is acquired through inverted transient-state thermal boundary conditions, so that temperature in the method is not a single average value on a transmission path any more but specific temperature distribution, and the method is higher in temperature resolution and higher in stability and can realize realtime and high-accuracy reconstruction of temperature distribution inside solid structure at different moments.</description><language>eng</language><subject>MEASURING ; MEASURING QUANTITY OF HEAT ; MEASURING TEMPERATURE ; PHYSICS ; TESTING ; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR</subject><creationdate>2015</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150722&DB=EPODOC&CC=CN&NR=104792435A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20150722&DB=EPODOC&CC=CN&NR=104792435A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DU YANXIA</creatorcontrib><creatorcontrib>SHI YOUAN</creatorcontrib><creatorcontrib>WEI DONG</creatorcontrib><creatorcontrib>GUI YEWEI</creatorcontrib><creatorcontrib>ZHANG HAOYUAN</creatorcontrib><creatorcontrib>GUAN RUI</creatorcontrib><creatorcontrib>QIU BO</creatorcontrib><creatorcontrib>ZENG LEI</creatorcontrib><title>Method for reconstructing nonuniform temperature field inside structure and based on transient-state thermal boundary inversion</title><description>The invention discloses a method for reconstructing a nonuniform temperature field inside structure and based on transient-state thermal boundary inversion. The method includes that on the basis of transition time of ultrasonic pulse echo, transient-state thermal boundary conditions causing temperature change of the structure is inverted; on this basis, non-steady-state temperature distribution inside the structure is reconstructed by solving a thermal conduction equation. 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The method includes that on the basis of transition time of ultrasonic pulse echo, transient-state thermal boundary conditions causing temperature change of the structure is inverted; on this basis, non-steady-state temperature distribution inside the structure is reconstructed by solving a thermal conduction equation. Compared with existing ultrasonic temperature measuring methods, the method has the advantages that ultrasonically-detected inside temperature is not acquired directly through transition time and is acquired through inverted transient-state thermal boundary conditions, so that temperature in the method is not a single average value on a transmission path any more but specific temperature distribution, and the method is higher in temperature resolution and higher in stability and can realize realtime and high-accuracy reconstruction of temperature distribution inside solid structure at different moments.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | MEASURING MEASURING QUANTITY OF HEAT MEASURING TEMPERATURE PHYSICS TESTING THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR |
| title | Method for reconstructing nonuniform temperature field inside structure and based on transient-state thermal boundary inversion |
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