The measurement of small flow
•Measurement of extremely low flows with high time resolution.•Use of Fast Fourier Transform to decompose signal to component depending on pump pulsation and component depending on chemical reaction.•The use of electrochemical reaction for flow measurement. The paper presents an electrochemical flow...
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| Veröffentlicht in: | Sensors and actuators. A. Physical. 2017-10, Vol.266, p.308-313 |
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| container_title | Sensors and actuators. A. Physical. |
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| creator | Krejčí, Jan Ježová, Lucie Kučerová, Radka Plička, Robert Broža, Štěpán Krejčí, David Ventrubová, Iva |
| description | •Measurement of extremely low flows with high time resolution.•Use of Fast Fourier Transform to decompose signal to component depending on pump pulsation and component depending on chemical reaction.•The use of electrochemical reaction for flow measurement.
The paper presents an electrochemical flow meter. It is based on a principle of measuring a response to chemical reaction which depends on the flow. The ferro/ferricyanide redox couple has reliable and robust electrochemical kinetics. The reaction consists of transfer of one electron and change of solvation structure without any change of complex structure. If the geometry of electrochemical cell is not changed the output current depends only on the flow through the cell. This device enables measurement of extremely low flows which is important in microsystem hydrodynamic studies. Measured flow limit of detection is 100 pl/min. The flow resolution is better than 1 pl/min. Time resolution of flow is better than 1s.
The device was used in study of peristaltic pump and movable piston pump flow. Sensitive measurement of flow and use of Fast Fourier Transform (FFT) has proved that noise generated by pump is periodic and correlates with the flow. The signal after pump pulsation elimination has white noise. The analysis of sensor signals with FFT in systems with peristaltic pumps or movable piston pumps enables to split the signal to periodic component correlating with the flow and non-periodic component correlating with the measured concentration. |
| doi_str_mv | 10.1016/j.sna.2017.08.050 |
| format | Article |
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The paper presents an electrochemical flow meter. It is based on a principle of measuring a response to chemical reaction which depends on the flow. The ferro/ferricyanide redox couple has reliable and robust electrochemical kinetics. The reaction consists of transfer of one electron and change of solvation structure without any change of complex structure. If the geometry of electrochemical cell is not changed the output current depends only on the flow through the cell. This device enables measurement of extremely low flows which is important in microsystem hydrodynamic studies. Measured flow limit of detection is 100 pl/min. The flow resolution is better than 1 pl/min. Time resolution of flow is better than 1s.
The device was used in study of peristaltic pump and movable piston pump flow. Sensitive measurement of flow and use of Fast Fourier Transform (FFT) has proved that noise generated by pump is periodic and correlates with the flow. The signal after pump pulsation elimination has white noise. The analysis of sensor signals with FFT in systems with peristaltic pumps or movable piston pumps enables to split the signal to periodic component correlating with the flow and non-periodic component correlating with the measured concentration.</description><identifier>ISSN: 0924-4247</identifier><identifier>EISSN: 1873-3069</identifier><identifier>DOI: 10.1016/j.sna.2017.08.050</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Chemical reactions ; Correlation analysis ; Fast Fourier transformations ; Flow meter ; Fluid mechanics ; Geometry ; Hydrodynamics in microsystems ; Kinetics ; Microfluidics ; Movable piston pump ; Peristaltic pump ; Peristaltic pumps ; Piston pumps ; Pumps ; Reaction kinetics ; Sensors ; Small flow ; Solvation ; White noise</subject><ispartof>Sensors and actuators. A. Physical., 2017-10, Vol.266, p.308-313</ispartof><rights>2017 Elsevier B.V.</rights><rights>Copyright Elsevier BV Oct 15, 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c325t-20ace6b44e98d03a001a4c13555803d6777ec2020047fd41ea8703edbe0972213</citedby><cites>FETCH-LOGICAL-c325t-20ace6b44e98d03a001a4c13555803d6777ec2020047fd41ea8703edbe0972213</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.sna.2017.08.050$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Krejčí, Jan</creatorcontrib><creatorcontrib>Ježová, Lucie</creatorcontrib><creatorcontrib>Kučerová, Radka</creatorcontrib><creatorcontrib>Plička, Robert</creatorcontrib><creatorcontrib>Broža, Štěpán</creatorcontrib><creatorcontrib>Krejčí, David</creatorcontrib><creatorcontrib>Ventrubová, Iva</creatorcontrib><title>The measurement of small flow</title><title>Sensors and actuators. A. Physical.</title><description>•Measurement of extremely low flows with high time resolution.•Use of Fast Fourier Transform to decompose signal to component depending on pump pulsation and component depending on chemical reaction.•The use of electrochemical reaction for flow measurement.
The paper presents an electrochemical flow meter. It is based on a principle of measuring a response to chemical reaction which depends on the flow. The ferro/ferricyanide redox couple has reliable and robust electrochemical kinetics. The reaction consists of transfer of one electron and change of solvation structure without any change of complex structure. If the geometry of electrochemical cell is not changed the output current depends only on the flow through the cell. This device enables measurement of extremely low flows which is important in microsystem hydrodynamic studies. Measured flow limit of detection is 100 pl/min. The flow resolution is better than 1 pl/min. Time resolution of flow is better than 1s.
The device was used in study of peristaltic pump and movable piston pump flow. Sensitive measurement of flow and use of Fast Fourier Transform (FFT) has proved that noise generated by pump is periodic and correlates with the flow. The signal after pump pulsation elimination has white noise. The analysis of sensor signals with FFT in systems with peristaltic pumps or movable piston pumps enables to split the signal to periodic component correlating with the flow and non-periodic component correlating with the measured concentration.</description><subject>Chemical reactions</subject><subject>Correlation analysis</subject><subject>Fast Fourier transformations</subject><subject>Flow meter</subject><subject>Fluid mechanics</subject><subject>Geometry</subject><subject>Hydrodynamics in microsystems</subject><subject>Kinetics</subject><subject>Microfluidics</subject><subject>Movable piston pump</subject><subject>Peristaltic pump</subject><subject>Peristaltic pumps</subject><subject>Piston pumps</subject><subject>Pumps</subject><subject>Reaction kinetics</subject><subject>Sensors</subject><subject>Small flow</subject><subject>Solvation</subject><subject>White noise</subject><issn>0924-4247</issn><issn>1873-3069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKxEAQRRtRcBz9ABdCwHViVXcnleBKBl8w4GZcNz2dCibkMXYnin9vhrh2dTf3VF2OENcICQJmd00SeptIQEogTyCFE7HCnFSsICtOxQoKqWMtNZ2LixAaAFCKaCVudh8cdWzD5LnjfoyGKgqdbduoaofvS3FW2Tbw1V-uxfvT427zEm_fnl83D9vYKZmOsQTrONtrzUVegrIAaLVDlaZpDqrMiIidBAmgqSo1ss0JFJd7hoKkRLUWt8vdgx8-Jw6jaYbJ9_NLgwWRRJmBnlu4tJwfQvBcmYOvO-t_DII5WjCNmS2YowUDuZktzMz9wvA8_6tmb4KruXdc1p7daMqh_of-BbYoYcw</recordid><startdate>20171015</startdate><enddate>20171015</enddate><creator>Krejčí, Jan</creator><creator>Ježová, Lucie</creator><creator>Kučerová, Radka</creator><creator>Plička, Robert</creator><creator>Broža, Štěpán</creator><creator>Krejčí, David</creator><creator>Ventrubová, Iva</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>L7M</scope></search><sort><creationdate>20171015</creationdate><title>The measurement of small flow</title><author>Krejčí, Jan ; Ježová, Lucie ; Kučerová, Radka ; Plička, Robert ; Broža, Štěpán ; Krejčí, David ; Ventrubová, Iva</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c325t-20ace6b44e98d03a001a4c13555803d6777ec2020047fd41ea8703edbe0972213</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Chemical reactions</topic><topic>Correlation analysis</topic><topic>Fast Fourier transformations</topic><topic>Flow meter</topic><topic>Fluid mechanics</topic><topic>Geometry</topic><topic>Hydrodynamics in microsystems</topic><topic>Kinetics</topic><topic>Microfluidics</topic><topic>Movable piston pump</topic><topic>Peristaltic pump</topic><topic>Peristaltic pumps</topic><topic>Piston pumps</topic><topic>Pumps</topic><topic>Reaction kinetics</topic><topic>Sensors</topic><topic>Small flow</topic><topic>Solvation</topic><topic>White noise</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Krejčí, Jan</creatorcontrib><creatorcontrib>Ježová, Lucie</creatorcontrib><creatorcontrib>Kučerová, Radka</creatorcontrib><creatorcontrib>Plička, Robert</creatorcontrib><creatorcontrib>Broža, Štěpán</creatorcontrib><creatorcontrib>Krejčí, David</creatorcontrib><creatorcontrib>Ventrubová, Iva</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Sensors and actuators. A. Physical.</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Krejčí, Jan</au><au>Ježová, Lucie</au><au>Kučerová, Radka</au><au>Plička, Robert</au><au>Broža, Štěpán</au><au>Krejčí, David</au><au>Ventrubová, Iva</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The measurement of small flow</atitle><jtitle>Sensors and actuators. A. Physical.</jtitle><date>2017-10-15</date><risdate>2017</risdate><volume>266</volume><spage>308</spage><epage>313</epage><pages>308-313</pages><issn>0924-4247</issn><eissn>1873-3069</eissn><abstract>•Measurement of extremely low flows with high time resolution.•Use of Fast Fourier Transform to decompose signal to component depending on pump pulsation and component depending on chemical reaction.•The use of electrochemical reaction for flow measurement.
The paper presents an electrochemical flow meter. It is based on a principle of measuring a response to chemical reaction which depends on the flow. The ferro/ferricyanide redox couple has reliable and robust electrochemical kinetics. The reaction consists of transfer of one electron and change of solvation structure without any change of complex structure. If the geometry of electrochemical cell is not changed the output current depends only on the flow through the cell. This device enables measurement of extremely low flows which is important in microsystem hydrodynamic studies. Measured flow limit of detection is 100 pl/min. The flow resolution is better than 1 pl/min. Time resolution of flow is better than 1s.
The device was used in study of peristaltic pump and movable piston pump flow. Sensitive measurement of flow and use of Fast Fourier Transform (FFT) has proved that noise generated by pump is periodic and correlates with the flow. The signal after pump pulsation elimination has white noise. The analysis of sensor signals with FFT in systems with peristaltic pumps or movable piston pumps enables to split the signal to periodic component correlating with the flow and non-periodic component correlating with the measured concentration.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.sna.2017.08.050</doi><tpages>6</tpages></addata></record> |
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| ispartof | Sensors and actuators. A. Physical., 2017-10, Vol.266, p.308-313 |
| issn | 0924-4247 1873-3069 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Chemical reactions Correlation analysis Fast Fourier transformations Flow meter Fluid mechanics Geometry Hydrodynamics in microsystems Kinetics Microfluidics Movable piston pump Peristaltic pump Peristaltic pumps Piston pumps Pumps Reaction kinetics Sensors Small flow Solvation White noise |
| title | The measurement of small flow |
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