Characterization of Lubricating Oil Using Ultrasound
Data(s) |
01/01/2001
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Resumo |
This paper presents an ultrasonic method to measure small concentrations of water in lubricating oil. It uses an ultrasonic measurement cell composed by a piezoceramic emitter (5 and 10 MHz), and a large aperture PVDF receiver that eliminates diffraction effects. The propagation velocity, attenuation coefficient and density of several samples of water-in-oil emulsion were measured. The concentrations of water of the samples were in the range of 0 to 5% in volume, and the results showed that these low concentrations can be discriminated within a resolution of 0.2% in the studied range, using the measurement of the propagation velocity. |
Formato |
text/html |
Identificador |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-73862001000400006 |
Idioma(s) |
en |
Publicador |
The Brazilian Society of Mechanical Sciences |
Fonte |
Journal of the Brazilian Society of Mechanical Sciences v.23 n.4 2001 |
Palavras-Chave | #Ultrasound #liquid characterization #lubricating oil |
Tipo |
journal article |