TY - JOUR
T1 - Concentration measurement by acoustic reflectance
AU - Saggin, R.
AU - Coupland, J. N.
PY - 2001
Y1 - 2001
N2 - The speed of sound and the acoustic reflection coefficient of sucrose (0 to 60 wt%), glycerol (0 to 50 wt%), sodium chloride (0 to 27 wt%) solutions and tomato ketchup (O to 100 wt%) dispersions were measured using a modified pulse-echo technique (2.25 MHz transducer, 20°C). The density of all solutions is measured using a vibrating tube densitometer. All measured parameters are linear functions of concentration. Ultrasonic reflectance can provide equally precise measurements of concentration as conventional ultrasonic velocity measurements. For all samples except concentrated ketchup (> 50 wt%), measured reflectance is demonstrated to be a function of ultrasonic velocity and density.
AB - The speed of sound and the acoustic reflection coefficient of sucrose (0 to 60 wt%), glycerol (0 to 50 wt%), sodium chloride (0 to 27 wt%) solutions and tomato ketchup (O to 100 wt%) dispersions were measured using a modified pulse-echo technique (2.25 MHz transducer, 20°C). The density of all solutions is measured using a vibrating tube densitometer. All measured parameters are linear functions of concentration. Ultrasonic reflectance can provide equally precise measurements of concentration as conventional ultrasonic velocity measurements. For all samples except concentrated ketchup (> 50 wt%), measured reflectance is demonstrated to be a function of ultrasonic velocity and density.
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U2 - 10.1111/j.1365-2621.2001.tb04621.x
DO - 10.1111/j.1365-2621.2001.tb04621.x
M3 - Article
AN - SCOPUS:0034877776
SN - 0022-1147
VL - 66
SP - 681
EP - 685
JO - Journal of Food Science
JF - Journal of Food Science
IS - 5
ER -