Facility for calibrating anemometers as a function of air velocity vector and turbulence
NIST calibrates anemometers as a function of airspeed vector and turbulence intensity ( ). The vector capability (sometimes called "3-D") is particularly important for calibrating multi-hole differential-pressure probes that are often used to quantify pollution emitted by smokestacks of co...
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| Veröffentlicht in: | Metrologia 2021-08, Vol.58 (4), p.45008 |
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| creator | Shinder, Iosif I Moldover, Michael R Filla, B James Johnson, Aaron N Khromchenko, Vladimir B |
| description | NIST calibrates anemometers as a function of airspeed vector and turbulence intensity (
). The vector capability (sometimes called "3-D") is particularly important for calibrating multi-hole differential-pressure probes that are often used to quantify pollution emitted by smokestacks of coal-burning electric power plants. Starting with a conventional "1-D" wind tunnel, we achieved vector and
capabilities by installing translation/rotation stages and removable turbulence generators (grids or flags). The calibration ranges are: yaw angle ±180°; pitch angle ±45°; airspeed 1 m/s to 30 m/s; turbulence intensity 0.07 ≤
≤ 0.25; average data collection rate: 300 points/hour at fixed
. The system's expanded uncertainties corresponding to 95 % confidence level are: airspeed 0.0045×|
|+(0.036/|
|)
where |
| is the magnitude of the airspeed in m/s; pitch and yaw angles 0.3°; and turbulence intensity 0.03
. The airspeed working standard is a Laser Doppler Anemometer that is traced to SI unit of velocity
a spinning disk. Calibrations are corrected for blockage by the instrument under test and its supports. |
| doi_str_mv | 10.1088/1681-7575/ac0a92 |
| format | Article |
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). The vector capability (sometimes called "3-D") is particularly important for calibrating multi-hole differential-pressure probes that are often used to quantify pollution emitted by smokestacks of coal-burning electric power plants. Starting with a conventional "1-D" wind tunnel, we achieved vector and
capabilities by installing translation/rotation stages and removable turbulence generators (grids or flags). The calibration ranges are: yaw angle ±180°; pitch angle ±45°; airspeed 1 m/s to 30 m/s; turbulence intensity 0.07 ≤
≤ 0.25; average data collection rate: 300 points/hour at fixed
. The system's expanded uncertainties corresponding to 95 % confidence level are: airspeed 0.0045×|
|+(0.036/|
|)
where |
| is the magnitude of the airspeed in m/s; pitch and yaw angles 0.3°; and turbulence intensity 0.03
. The airspeed working standard is a Laser Doppler Anemometer that is traced to SI unit of velocity
a spinning disk. Calibrations are corrected for blockage by the instrument under test and its supports.</description><identifier>ISSN: 0026-1394</identifier><identifier>EISSN: 1681-7575</identifier><identifier>DOI: 10.1088/1681-7575/ac0a92</identifier><identifier>PMID: 36632171</identifier><identifier>CODEN: MTRGAU</identifier><language>eng</language><publisher>England: IOP Publishing</publisher><subject>Aerodynamics ; airspeed vector calibration ; Anemometers ; blockage effect ; Calibration ; Chimneys ; Confidence intervals ; Electric power plants ; hot wire probe ; Motion systems ; multi-hole pitot probe ; Phase Doppler Anemometer ; Pitch (inclination) ; Pressure sensors ; turbulence correction ; Turbulence intensity ; turbulent flow ; Wind tunnels ; Yaw</subject><ispartof>Metrologia, 2021-08, Vol.58 (4), p.45008</ispartof><rights>Not subject to copyright in the USA. Contribution of NIST</rights><rights>Copyright IOP Publishing Aug 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c493t-4700849b71d9ada76127f5ec69d0be2e8bcd16dd26e80d4d60a948df5c5d9483</citedby><cites>FETCH-LOGICAL-c493t-4700849b71d9ada76127f5ec69d0be2e8bcd16dd26e80d4d60a948df5c5d9483</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1681-7575/ac0a92/pdf$$EPDF$$P50$$Giop$$H</linktopdf><link.rule.ids>230,314,780,784,885,27924,27925,53846,53893</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36632171$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Shinder, Iosif I</creatorcontrib><creatorcontrib>Moldover, Michael R</creatorcontrib><creatorcontrib>Filla, B James</creatorcontrib><creatorcontrib>Johnson, Aaron N</creatorcontrib><creatorcontrib>Khromchenko, Vladimir B</creatorcontrib><title>Facility for calibrating anemometers as a function of air velocity vector and turbulence</title><title>Metrologia</title><addtitle>MET</addtitle><addtitle>Metrologia</addtitle><description>NIST calibrates anemometers as a function of airspeed vector and turbulence intensity (
). The vector capability (sometimes called "3-D") is particularly important for calibrating multi-hole differential-pressure probes that are often used to quantify pollution emitted by smokestacks of coal-burning electric power plants. Starting with a conventional "1-D" wind tunnel, we achieved vector and
capabilities by installing translation/rotation stages and removable turbulence generators (grids or flags). The calibration ranges are: yaw angle ±180°; pitch angle ±45°; airspeed 1 m/s to 30 m/s; turbulence intensity 0.07 ≤
≤ 0.25; average data collection rate: 300 points/hour at fixed
. The system's expanded uncertainties corresponding to 95 % confidence level are: airspeed 0.0045×|
|+(0.036/|
|)
where |
| is the magnitude of the airspeed in m/s; pitch and yaw angles 0.3°; and turbulence intensity 0.03
. The airspeed working standard is a Laser Doppler Anemometer that is traced to SI unit of velocity
a spinning disk. Calibrations are corrected for blockage by the instrument under test and its supports.</description><subject>Aerodynamics</subject><subject>airspeed vector calibration</subject><subject>Anemometers</subject><subject>blockage effect</subject><subject>Calibration</subject><subject>Chimneys</subject><subject>Confidence intervals</subject><subject>Electric power plants</subject><subject>hot wire probe</subject><subject>Motion systems</subject><subject>multi-hole pitot probe</subject><subject>Phase Doppler Anemometer</subject><subject>Pitch (inclination)</subject><subject>Pressure sensors</subject><subject>turbulence correction</subject><subject>Turbulence intensity</subject><subject>turbulent flow</subject><subject>Wind tunnels</subject><subject>Yaw</subject><issn>0026-1394</issn><issn>1681-7575</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kc1rHSEUxaU0JK8v2XcVhC7aRSdRx6_ZBEJo2kIgmyyyE0ed1DCjL-o8yH9fh5e-tKWFC4r-zr0eDwDvMTrDSMpzzCVuBBPsXBukO_IGrPZHb8EKIcIb3Hb0CLzL-REhLAgTh-Co5bwlWOAVuL_Wxo--PMMhJmj06Pukiw8PUAc3xckVlzLUteAwB1N8DDAOUPsEt26MZlFunSlVrIOFZU79PLpg3DE4GPSY3cnLugZ311_urr41N7dfv19d3jSGdm1pqEBI0q4X2HbaasExEQNzhncW9Y442RuLubWEO4kstbzapNIOzDBbN-0aXOzabuZ-cta4UJIe1Sb5SadnFbVXf94E_0M9xK3qZIs6QmuDTy8NUnyaXS5q8tm4caz-45wVEZwhQQjHFf3wF_oY5xSqO0UYa1silloDtKNMijknN-wfg5FaUlNLRGqJSO1Sq5LT303sBb9iqsDHHeDj5nVoDUcxqahClNVfVBs7VPLzP8j_Tv4JtnOvgw</recordid><startdate>20210801</startdate><enddate>20210801</enddate><creator>Shinder, Iosif I</creator><creator>Moldover, Michael R</creator><creator>Filla, B James</creator><creator>Johnson, Aaron N</creator><creator>Khromchenko, Vladimir B</creator><general>IOP Publishing</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20210801</creationdate><title>Facility for calibrating anemometers as a function of air velocity vector and turbulence</title><author>Shinder, Iosif I ; Moldover, Michael R ; Filla, B James ; Johnson, Aaron N ; Khromchenko, Vladimir B</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c493t-4700849b71d9ada76127f5ec69d0be2e8bcd16dd26e80d4d60a948df5c5d9483</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Aerodynamics</topic><topic>airspeed vector calibration</topic><topic>Anemometers</topic><topic>blockage effect</topic><topic>Calibration</topic><topic>Chimneys</topic><topic>Confidence intervals</topic><topic>Electric power plants</topic><topic>hot wire probe</topic><topic>Motion systems</topic><topic>multi-hole pitot probe</topic><topic>Phase Doppler Anemometer</topic><topic>Pitch (inclination)</topic><topic>Pressure sensors</topic><topic>turbulence correction</topic><topic>Turbulence intensity</topic><topic>turbulent flow</topic><topic>Wind tunnels</topic><topic>Yaw</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shinder, Iosif I</creatorcontrib><creatorcontrib>Moldover, Michael R</creatorcontrib><creatorcontrib>Filla, B James</creatorcontrib><creatorcontrib>Johnson, Aaron N</creatorcontrib><creatorcontrib>Khromchenko, Vladimir B</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Metrologia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shinder, Iosif I</au><au>Moldover, Michael R</au><au>Filla, B James</au><au>Johnson, Aaron N</au><au>Khromchenko, Vladimir B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Facility for calibrating anemometers as a function of air velocity vector and turbulence</atitle><jtitle>Metrologia</jtitle><stitle>MET</stitle><addtitle>Metrologia</addtitle><date>2021-08-01</date><risdate>2021</risdate><volume>58</volume><issue>4</issue><spage>45008</spage><pages>45008-</pages><issn>0026-1394</issn><eissn>1681-7575</eissn><coden>MTRGAU</coden><abstract>NIST calibrates anemometers as a function of airspeed vector and turbulence intensity (
). The vector capability (sometimes called "3-D") is particularly important for calibrating multi-hole differential-pressure probes that are often used to quantify pollution emitted by smokestacks of coal-burning electric power plants. Starting with a conventional "1-D" wind tunnel, we achieved vector and
capabilities by installing translation/rotation stages and removable turbulence generators (grids or flags). The calibration ranges are: yaw angle ±180°; pitch angle ±45°; airspeed 1 m/s to 30 m/s; turbulence intensity 0.07 ≤
≤ 0.25; average data collection rate: 300 points/hour at fixed
. The system's expanded uncertainties corresponding to 95 % confidence level are: airspeed 0.0045×|
|+(0.036/|
|)
where |
| is the magnitude of the airspeed in m/s; pitch and yaw angles 0.3°; and turbulence intensity 0.03
. The airspeed working standard is a Laser Doppler Anemometer that is traced to SI unit of velocity
a spinning disk. Calibrations are corrected for blockage by the instrument under test and its supports.</abstract><cop>England</cop><pub>IOP Publishing</pub><pmid>36632171</pmid><doi>10.1088/1681-7575/ac0a92</doi><tpages>15</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Metrologia, 2021-08, Vol.58 (4), p.45008 |
| issn | 0026-1394 1681-7575 |
| language | eng |
| recordid | cdi_proquest_journals_2553327327 |
| source | Institute of Physics Journals |
| subjects | Aerodynamics airspeed vector calibration Anemometers blockage effect Calibration Chimneys Confidence intervals Electric power plants hot wire probe Motion systems multi-hole pitot probe Phase Doppler Anemometer Pitch (inclination) Pressure sensors turbulence correction Turbulence intensity turbulent flow Wind tunnels Yaw |
| title | Facility for calibrating anemometers as a function of air velocity vector and turbulence |
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