Use of ultrasound to monitor physical properties of soybean oil

8th Brazilian Congress on Metrology

Baêsso, R.M.^1 ; Oliveira, P.A.^1 ; Morais, G.C.^1 ; Alvarenga, A.V.^1 ; Costa-Félix, R.P.B.^1

Laboratory of Ultrasound (Labus), Directory of Scientific and Industrial Metrology (Dimci), National Institute of Metrology, Quality and Technology (Inmetro), Av. Nossa Sra. das Graças 50, Duque de Caxias

RJ

25250-020, Brazil^1

关键词: Dimensionless parameters;    Pulse-echo method;    Real time;    Time of flight;    Ultrasonic monitoring;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/733/1/012042/pdf
DOI  :  10.1088/1742-6596/733/1/012042

来源: IOP

【 摘 要 】

The study of the monitoring physical properties of soybean oil was performed. The pulse-echo method allowed measuring the density and viscosity of the oil in real time and accurately. The physical property values were related to the acoustic time of flight ratio, dimensionless parameter that can be obtained from any reference. In our case, we used the time of flight at 20°C as reference and a fixed distance between the transducer and the reflector. Ultrasonic monitoring technique employed here has shown promising in the analysis of edible oils.