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ultrasound attenuation spectroscopy
Ultrasound attenuation spectroscopy is a method for characterizing properties of fluids and dispersed particles. It is also known as acoustic spectroscopy
There is an international standard for this method.〔ISO 20998-1:2006 "Measurement and characterization of particles by acoustic methods"〕〔Dukhin, A.S. and Goetz, P.J. "Ultrasound for characterizing colloids", Elsevier, 2002〕
Measurement of attenuation coefficient versus ultrasound frequency yields raw data for further calculation of various system properties. Such raw data are often used in the calculation of the particle size distribution in heterogeneous systems such as emulsions and colloids. In the case of acoustic rheometers, the raw data are converted into extensional viscosity or volume viscosity.
Instruments that employ ''ultrasound attenuation spectroscopy'' are referred to as Acoustic spectrometers.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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