A COLOUR IMAGE PROCESSING ALGORITHM TO IDENTIFY COPPER-BASED PARTICLES IN FILTER DEBRIS SAMPLES

Authors
  1. Yeung, K.K.
  2. Luoma, G.A.
  3. McKenzie, A.J.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN)
Abstract
In oil-wetted aircraft machinery fitted with coarse (>50 micron) filtration systems, sufficient fine particulate wear debris passes through the filter to enable meaningful spectrometric oil analysis (SOA) of the oil sample debris for off-line condition monitoring. The use of fine (10 micron) filters in the F404 engines of the CF-l8 aircraft has severely limited the usefulness of oil analysis techniques because the filters remove almost all debris of significance from the oil. The Defence Research Establishment Pacific (DREP) has developed Filter Debris Analysis (FDA) as an alternative off-line monitoring procedure for the CF-l8 F404 engines. In addition, FDA can supplement conventional oil analysis techniques for condition monitoring of machinery with coarse filtration by evaluating the accumulated wear debris generated between filter changes. The method has been very successful at predicting wear anomalies and is being adopted into the routine maintenance procedures for selected machinery. The main drawbacks of FDA at present are that it is time-consuming, it is manpower intensive, and the interpretation of debris levels is subjective. TRUNCATED
Report Number
DREP-TM-93-19 — Technical Memorandum
Date of publication
01 Mar 1993
Number of Pages
27
DSTKIM No
93-02769
CANDIS No
129990
Format(s):
Hardcopy;Originator's fiche received by DSIS

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