DocumentCode :
3232038
Title :
Quantitative analysis of liquids and emulsions by means of high-frequency ultrasound (15–35 MHz)
Author :
Vogt, M. ; Ermert, H.
Author_Institution :
High Freq. Eng. Res. Group, Ruhr-Univ. Bochum, Bochum, Germany
fYear :
2011
fDate :
18-21 Oct. 2011
Firstpage :
68
Lastpage :
71
Abstract :
The analysis of homogeneous liquids and immiscible mixtures of different liquids (emulsions) is of interest in many industrial processes. Ultrasound based methods allow to measure various acoustic parameters (speed of sound, acoustic impedance, frequency-dependent attenuation), which are suitable to quantitatively characterize liquids and emulsions. In this work, a high-frequency ultrasound (HFUS) measurement cell working in the range from 15 to 35 MHz is presented. The design of the cell and approaches for quantitative ultrasound analysis are discussed based on an analytical one-dimensional model for the propagation of ultrasound waves. Appropriate echo signal processing strategies for parameter extraction and calibration techniques have been developed. Results of the evaluation of the implemented system are presented.
Keywords :
acoustic impedance; acoustic signal processing; calibration; chemical analysis; emulsions; liquid mixtures; ultrasonic materials testing; ultrasonic measurement; ultrasonic propagation; ultrasonic waves; acoustic impedance; acoustic parameters; calibration; echo signal processing; emulsions; frequency 15 MHz to 35 MHz; frequency dependent attenuation; high-frequency ultrasound measurement; homogeneous liquids; immiscible mixtures; industrial processes; one-dimensional model; quantitative analysis; sound speed; ultrasound based method; ultrasound wave propagation; Acoustic measurements; Acoustics; Artificial intelligence; Frequency measurement; Liquids; Ultrasonic imaging; Ultrasonic variables measurement; Ultrasound spectroscopy; frequency-domain sampling; vector network analyzer;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium (IUS), 2011 IEEE International
Conference_Location :
Orlando, FL
ISSN :
1948-5719
Print_ISBN :
978-1-4577-1253-1
Type :
conf
DOI :
10.1109/ULTSYM.2011.0018
Filename :
6293518
Link To Document :
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