Please use this identifier to cite or link to this item: http://dlib.scu.ac.ir/handle/1956/2782
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DC FieldValueLanguage
dc.creatorBjørndal, Erlend-
dc.creatorFrøysa, Kjell-Eivind-
dc.creatorEngeseth, Svein-Atle-
dc.date2008-10-06T13:58:05Z-
dc.date2008-10-06T13:58:05Z-
dc.date2008-08-08-
dc.date2008-08-08-
dc.date.accessioned2019-07-20T06:44:10Z-
dc.date.available2019-07-20T06:44:10Z-
dc.identifierUltrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on 2008 55 (8): 1794-1808-
dc.identifier0885-3010-
dc.identifierhttp://hdl.handle.net/1956/2782-
dc.identifier10.1109/tuffc.2008.863-
dc.identifier.urihttps://bora.uib.no/handle/1956/2782-
dc.descriptionA new method for measuring the pressure reflection coefficient in a buffer rod configuration is presented, together with experimental results for acoustic measurements of the liquid density, based on the measurement of the liquid's acoustic impedance. The method consists of using 2 buffers enclosing the liquid in a symmetrical arrangement with a transducer fixed to each buffer. One of the transducers is used in a pulse-echo mode while the other transducer operates as a receiver. The echo amplitudes leading to the pressure reflection coefficient as found by this method possess advantages such as reduced attenuation due to a shorter liquid transmission path and reduced interference, as compared with the ABC method. Measurements with distilled water and with special density calibration oil qualities have been performed using both the new method and the ABC method and are shown for the new method to give a density span within plusmn0.15% of the reference values. A comparison of the measured densities based on both a time-domain and a l2-norm frequency domain integration signal processing approach is given, along with a recommendation as to how the signal processing should be performed.-
dc.descriptionJournal Article-
dc.languageeng-
dc.publisherIEEE-
dc.rightsIEEE-
dc.subjectAcoustic impedance-
dc.subjectAcoustic measurement-
dc.subjectAcoustic transducers-
dc.subjectDensity measurement-
dc.subjectFrequency-domain analysis-
dc.subjectOils-
dc.subjectTime-domain analysis-
dc.subjectWater-
dc.subjectAcoustic liquid density measurements-
dc.subjectBuffer rod based measuring-
dc.subjectCell-
dc.subjectDensity span-
dc.subjectDistilled water-
dc.subjectEcho amplitudes-
dc.subjectInterference reduction-
dc.subjectl2-norm frequency-
dc.subjectDomain integration signal processing approach-
dc.subjectLiquid acoustic impedance measurement-
dc.subjectLiquid transmission path-
dc.subjectPressure reflection coefficient measurement-
dc.subjectPulse-echo mode-
dc.subjectSpecial density calibration oil qualities-
dc.subjectTime-domain processing-
dc.subjectTransducer arrangement-
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430-
dc.titleA Novel Approach to Acoustic Liquid Density Measurements Using a Buffer Rod Based Measuring Cell-
dc.typePeer reviewed-
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.
Full metadata record
DC FieldValueLanguage
dc.creatorBjørndal, Erlend-
dc.creatorFrøysa, Kjell-Eivind-
dc.creatorEngeseth, Svein-Atle-
dc.date2008-10-06T13:58:05Z-
dc.date2008-10-06T13:58:05Z-
dc.date2008-08-08-
dc.date2008-08-08-
dc.date.accessioned2019-07-20T06:44:10Z-
dc.date.available2019-07-20T06:44:10Z-
dc.identifierUltrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on 2008 55 (8): 1794-1808-
dc.identifier0885-3010-
dc.identifierhttp://hdl.handle.net/1956/2782-
dc.identifier10.1109/tuffc.2008.863-
dc.identifier.urihttps://bora.uib.no/handle/1956/2782-
dc.descriptionA new method for measuring the pressure reflection coefficient in a buffer rod configuration is presented, together with experimental results for acoustic measurements of the liquid density, based on the measurement of the liquid's acoustic impedance. The method consists of using 2 buffers enclosing the liquid in a symmetrical arrangement with a transducer fixed to each buffer. One of the transducers is used in a pulse-echo mode while the other transducer operates as a receiver. The echo amplitudes leading to the pressure reflection coefficient as found by this method possess advantages such as reduced attenuation due to a shorter liquid transmission path and reduced interference, as compared with the ABC method. Measurements with distilled water and with special density calibration oil qualities have been performed using both the new method and the ABC method and are shown for the new method to give a density span within plusmn0.15% of the reference values. A comparison of the measured densities based on both a time-domain and a l2-norm frequency domain integration signal processing approach is given, along with a recommendation as to how the signal processing should be performed.-
dc.descriptionJournal Article-
dc.languageeng-
dc.publisherIEEE-
dc.rightsIEEE-
dc.subjectAcoustic impedance-
dc.subjectAcoustic measurement-
dc.subjectAcoustic transducers-
dc.subjectDensity measurement-
dc.subjectFrequency-domain analysis-
dc.subjectOils-
dc.subjectTime-domain analysis-
dc.subjectWater-
dc.subjectAcoustic liquid density measurements-
dc.subjectBuffer rod based measuring-
dc.subjectCell-
dc.subjectDensity span-
dc.subjectDistilled water-
dc.subjectEcho amplitudes-
dc.subjectInterference reduction-
dc.subjectl2-norm frequency-
dc.subjectDomain integration signal processing approach-
dc.subjectLiquid acoustic impedance measurement-
dc.subjectLiquid transmission path-
dc.subjectPressure reflection coefficient measurement-
dc.subjectPulse-echo mode-
dc.subjectSpecial density calibration oil qualities-
dc.subjectTime-domain processing-
dc.subjectTransducer arrangement-
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430-
dc.titleA Novel Approach to Acoustic Liquid Density Measurements Using a Buffer Rod Based Measuring Cell-
dc.typePeer reviewed-
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.
Full metadata record
DC FieldValueLanguage
dc.creatorBjørndal, Erlend-
dc.creatorFrøysa, Kjell-Eivind-
dc.creatorEngeseth, Svein-Atle-
dc.date2008-10-06T13:58:05Z-
dc.date2008-10-06T13:58:05Z-
dc.date2008-08-08-
dc.date2008-08-08-
dc.date.accessioned2019-07-20T06:44:10Z-
dc.date.available2019-07-20T06:44:10Z-
dc.identifierUltrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on 2008 55 (8): 1794-1808-
dc.identifier0885-3010-
dc.identifierhttp://hdl.handle.net/1956/2782-
dc.identifier10.1109/tuffc.2008.863-
dc.identifier.urihttps://bora.uib.no/handle/1956/2782-
dc.descriptionA new method for measuring the pressure reflection coefficient in a buffer rod configuration is presented, together with experimental results for acoustic measurements of the liquid density, based on the measurement of the liquid's acoustic impedance. The method consists of using 2 buffers enclosing the liquid in a symmetrical arrangement with a transducer fixed to each buffer. One of the transducers is used in a pulse-echo mode while the other transducer operates as a receiver. The echo amplitudes leading to the pressure reflection coefficient as found by this method possess advantages such as reduced attenuation due to a shorter liquid transmission path and reduced interference, as compared with the ABC method. Measurements with distilled water and with special density calibration oil qualities have been performed using both the new method and the ABC method and are shown for the new method to give a density span within plusmn0.15% of the reference values. A comparison of the measured densities based on both a time-domain and a l2-norm frequency domain integration signal processing approach is given, along with a recommendation as to how the signal processing should be performed.-
dc.descriptionJournal Article-
dc.languageeng-
dc.publisherIEEE-
dc.rightsIEEE-
dc.subjectAcoustic impedance-
dc.subjectAcoustic measurement-
dc.subjectAcoustic transducers-
dc.subjectDensity measurement-
dc.subjectFrequency-domain analysis-
dc.subjectOils-
dc.subjectTime-domain analysis-
dc.subjectWater-
dc.subjectAcoustic liquid density measurements-
dc.subjectBuffer rod based measuring-
dc.subjectCell-
dc.subjectDensity span-
dc.subjectDistilled water-
dc.subjectEcho amplitudes-
dc.subjectInterference reduction-
dc.subjectl2-norm frequency-
dc.subjectDomain integration signal processing approach-
dc.subjectLiquid acoustic impedance measurement-
dc.subjectLiquid transmission path-
dc.subjectPressure reflection coefficient measurement-
dc.subjectPulse-echo mode-
dc.subjectSpecial density calibration oil qualities-
dc.subjectTime-domain processing-
dc.subjectTransducer arrangement-
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430-
dc.titleA Novel Approach to Acoustic Liquid Density Measurements Using a Buffer Rod Based Measuring Cell-
dc.typePeer reviewed-
Appears in Collections:Department of Earth Science

Files in This Item:
Click on the URI links for accessing contents.