Self-Monitoring Ultrasonic Gas Flow Meter Based on Vortex and Correlation Method
Ultrasound is advantageous for gas flow velocity measurements, owing to its high sensitivity to all kinds of turbulences in the streaming fluid. The cross-correlation method and vortex measurement behind a bluff body have been proven to be good. The most important and difficult problem is ultrasound...
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| Veröffentlicht in: | IEEE transactions on instrumentation and measurement 2007-12, Vol.56 (6), p.2420-2424 |
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| creator | Yaoying Lin Hans, V. |
| description | Ultrasound is advantageous for gas flow velocity measurements, owing to its high sensitivity to all kinds of turbulences in the streaming fluid. The cross-correlation method and vortex measurement behind a bluff body have been proven to be good. The most important and difficult problem is ultrasound signal processing. A complex modulated signal has be demodulated by undersampling. The real and imaginary parts of the complex signal can be determined by Hilbert transformation. The demodulated phase or amplitude signal can be applied to cross-correlation functions for the detection of flow velocity. The vortex frequency can be detected by a simple analog signal processing device. The combination of vortex and cross-correlation measurements results in a self-monitoring system. The pattern of a group of vortices is used to determine the transition time of the fluid between two sensor pairs. Measurement results show that the relative error of gas flow velocity with the bluff body is evidently smaller than that without the bluff body. |
| doi_str_mv | 10.1109/TIM.2007.908137 |
| format | Article |
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The cross-correlation method and vortex measurement behind a bluff body have been proven to be good. The most important and difficult problem is ultrasound signal processing. A complex modulated signal has be demodulated by undersampling. The real and imaginary parts of the complex signal can be determined by Hilbert transformation. The demodulated phase or amplitude signal can be applied to cross-correlation functions for the detection of flow velocity. The vortex frequency can be detected by a simple analog signal processing device. The combination of vortex and cross-correlation measurements results in a self-monitoring system. The pattern of a group of vortices is used to determine the transition time of the fluid between two sensor pairs. Measurement results show that the relative error of gas flow velocity with the bluff body is evidently smaller than that without the bluff body.</description><identifier>ISSN: 0018-9456</identifier><identifier>EISSN: 1557-9662</identifier><identifier>DOI: 10.1109/TIM.2007.908137</identifier><identifier>CODEN: IEIMAO</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Bluff bodies ; Correlation ; Flow velocity ; Fluid dynamics ; Fluid flow ; Fluid flow measurement ; Fluids ; Frequency ; Gas flow ; Monitoring systems ; Phase detection ; self-monitoring system ; Signal processing ; Streaming media ; Turbulence ; Turbulent flow ; Ultrasonic imaging ; Ultrasonic variables measurement ; ultrasound ; Velocity measurement ; vortex ; Vortices</subject><ispartof>IEEE transactions on instrumentation and measurement, 2007-12, Vol.56 (6), p.2420-2424</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2007</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c320t-b0afc84313b226347adc1c6f00c29ef533a6dd62c029fdf2befb142d96607bf73</citedby><cites>FETCH-LOGICAL-c320t-b0afc84313b226347adc1c6f00c29ef533a6dd62c029fdf2befb142d96607bf73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/4389115$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/4389115$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Yaoying Lin</creatorcontrib><creatorcontrib>Hans, V.</creatorcontrib><title>Self-Monitoring Ultrasonic Gas Flow Meter Based on Vortex and Correlation Method</title><title>IEEE transactions on instrumentation and measurement</title><addtitle>TIM</addtitle><description>Ultrasound is advantageous for gas flow velocity measurements, owing to its high sensitivity to all kinds of turbulences in the streaming fluid. 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Measurement results show that the relative error of gas flow velocity with the bluff body is evidently smaller than that without the bluff body.</description><subject>Bluff bodies</subject><subject>Correlation</subject><subject>Flow velocity</subject><subject>Fluid dynamics</subject><subject>Fluid flow</subject><subject>Fluid flow measurement</subject><subject>Fluids</subject><subject>Frequency</subject><subject>Gas flow</subject><subject>Monitoring systems</subject><subject>Phase detection</subject><subject>self-monitoring system</subject><subject>Signal processing</subject><subject>Streaming media</subject><subject>Turbulence</subject><subject>Turbulent flow</subject><subject>Ultrasonic imaging</subject><subject>Ultrasonic variables measurement</subject><subject>ultrasound</subject><subject>Velocity measurement</subject><subject>vortex</subject><subject>Vortices</subject><issn>0018-9456</issn><issn>1557-9662</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkDFPwzAQRi0EEqUwM7BYLExpz3ZiOyNUtCC1AomW1XIcG1KlcbFTAf8eV0UMTKc7ve909xC6JDAiBMrx8nExogBiVIIkTByhASkKkZWc02M0ACAyK_OCn6KzGNeQQJ6LAXp-sa3LFr5reh-a7g2v2j7omHqDZzriaes_8cL2NuA7HW2NfYdffejtF9ZdjSc-BNvqvknjRL37-hydON1Ge_Fbh2g1vV9OHrL50-xxcjvPDKPQZxVoZ2TOCKso5SwXujbEcAdgaGldwZjmdc2pAVq62tHKuorktE7vgKicYEN0c9i7Df5jZ2OvNk00tm11Z_0uKikKyFleQCKv_5FrvwtdOk5JzoTkUpYJGh8gE3yMwTq1Dc1Gh29FQO39quRX7f2qg9-UuDokGmvtH50zWRJSsB-4H3XS</recordid><startdate>20071201</startdate><enddate>20071201</enddate><creator>Yaoying Lin</creator><creator>Hans, V.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The cross-correlation method and vortex measurement behind a bluff body have been proven to be good. The most important and difficult problem is ultrasound signal processing. A complex modulated signal has be demodulated by undersampling. The real and imaginary parts of the complex signal can be determined by Hilbert transformation. The demodulated phase or amplitude signal can be applied to cross-correlation functions for the detection of flow velocity. The vortex frequency can be detected by a simple analog signal processing device. The combination of vortex and cross-correlation measurements results in a self-monitoring system. The pattern of a group of vortices is used to determine the transition time of the fluid between two sensor pairs. Measurement results show that the relative error of gas flow velocity with the bluff body is evidently smaller than that without the bluff body.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TIM.2007.908137</doi><tpages>5</tpages></addata></record> |
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| ispartof | IEEE transactions on instrumentation and measurement, 2007-12, Vol.56 (6), p.2420-2424 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Bluff bodies Correlation Flow velocity Fluid dynamics Fluid flow Fluid flow measurement Fluids Frequency Gas flow Monitoring systems Phase detection self-monitoring system Signal processing Streaming media Turbulence Turbulent flow Ultrasonic imaging Ultrasonic variables measurement ultrasound Velocity measurement vortex Vortices |
| title | Self-Monitoring Ultrasonic Gas Flow Meter Based on Vortex and Correlation Method |
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