Accession Number : ADA181597

Title :   Research into an On-Line Device for Monitoring Contamination in Fluids Using Ultrasonic Techniques.

Descriptive Note : Final rept.,

Corporate Author : IMPERIAL COLL OF SCIENCE AND TECHNOLOGY LONDON (ENGLAND) DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Harries,C. J. ; Sayles,R. S. ; Macpherson,P. B.

Report Date : DEC 1984

Pagination or Media Count : 105

Abstract : This report describes the research and development of a prototype ultrasonic device for on-line monitoring of particles within lubricant and hydraulic systems. The technique developed is shown to operate successfully with small hard particles in the range 30-100 micro suspended in a lubricant and in a range of concentrations typical of lubricant and hydraulic systems. The device is shown to offer continuous information on particle size, concentration, and possibly material. Further research needed to realise the full potential of this device, and in particular, overcoming the problems posed by entrained air, is detailed as of November 1984. The research is continuing under a separate MOD contract and results will be reported in 1986.

Descriptors :   *HYDRAULIC EQUIPMENT, *FLUIDS, *CONTAMINATION, *ULTRASONIC TESTS, MONITORING, ON LINE SYSTEMS, PARTICLE SIZE, PARTICLES, AIR ENTRAINMENT, PROTOTYPES

Subject Categories : Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE