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Ultrasonic sensor for the presence of oily contaminants in water

Franco, Ediguer Enrique and Adamowski, Julio Cezar and Buiochi, Flávio (2012) Ultrasonic sensor for the presence of oily contaminants in water. Dyna; Vol. 79, núm. 176 (2012); 4-9 DYNA; Vol. 79, núm. 176 (2012); 4-9 2346-2183 0012-7353 .

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URL oficial: http://revistas.unal.edu.co/index.php/dyna/article...

Resumen

The measurement of the reflection coefficient of ultrasonic shear-waves at the solid-liquid interface is a technique employed for the measurement of the viscoelastic properties of liquids. An interesting property of the measurement technique is the very small penetration depth of the shear-waves into the liquid sample, that permits measurements with liquid films of some micrometers thick. This property, besides the well known tendency of oily substances to stick to the surfaces, can be used for the detection of oily contaminants in water. In this work, the employment of the ultrasonic shear-wave reflection technique to the detection of oily contaminants in water is proposed and the theoretical and experimental concepts involved are discussed. Preliminary experimental results show the measurement technique can detect SAE 40 automotive oil in water in volume proportions less than 0.5%.

Tipo de documento:Artículo - Article
Información adicional:Derechos de autor reservados
Palabras clave:Ultrasound, shear waves, oil-in-water emulsion, oily contaminant
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:25150
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :27 Junio 2014 16:17
Ultima modificación:06 Junio 2018 10:55
Ultima modificación:06 Junio 2018 10:55
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