Characterization of lubricating oil using ultrasound

Nenhuma Miniatura disponível

Data

2001-12-01

Autores

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Tipo

Artigo

Direito de acesso

Acesso abertoAcesso Aberto

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.

Descrição

Palavras-chave

Liquid characterization , Lubricating oil , Ultrasound , Attenuation , Characterization , Ultrasonic applications , Velocity , Water , Wave propagation , Attenuation coefficient , Piezoceramic emitter , Propagation velocity , Water in oil emulsion , Lubricating oils

Idioma

Inglês

Como citar

Revista Brasileira de Ciencias Mecanicas/Journal of the Brazilian Society of Mechanical Sciences, v. 23, n. 4, p. 453-461, 2001.

URI

http://hdl.handle.net/11449/66681

Itens relacionados

Financiadores

Coleções

Ilha Solteira - FEIS - Faculdade de Engenharia