Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/31331
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Title

X-cut quartz crystal impedance meter for liquid characterization

AuthorsResa López, Pablo Ismael CSIC; Sierra Sánchez, Carlos José CSIC; Elvira Segura, Luis CSIC ORCID CVN
KeywordsAcoustic impedance
Density
Sound velocity
Liquid characterization
Piezoelectric crystal
X-cut quartz
QCM
Issue DateFeb-2011
PublisherInstitute of Physics Publishing
CitationMeasurement Science and Technology 22(2): 025403 (2011)
AbstractA new procedure to determine the compressional acoustic impedance of liquids within ±0.05% resolution and ±0.25% accuracy is presented. This method is based on the measurement of the bandwidth of a piezoelectric transducer, vibrating in thickness-expansion mode and having a high quality factor (e.g., air-backed X-cut quartz crystal), in direct contact with the sample. In combination with other ultrasonic techniques (pulse-echo or through-transmission), it is possible to simultaneously obtain the main ultrasonic parameters (characteristic acoustic impedance, speed of sound and attenuation coefficient), and deduce important physicochemical properties of liquids, such as density and adiabatic compressibility. Experimental results for selected liquids and solutions are shown.
Description8 páginas, 10 figuras, 2 tablas.
Publisher version (URL)http://dx.doi.org/10.1088/0957-0233/22/2/025403
URIhttp://hdl.handle.net/10261/31331
DOI10.1088/0957-0233/22/2/025403
ISSN0957-0233
Appears in Collections:(CAEND) Artículos

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