Measuring and testing – Gas analysis – Solid content of gas
Patent
1984-03-19
1985-11-05
Kreitman, Stephen A.
Measuring and testing
Gas analysis
Solid content of gas
73 61R, G01N 1500
Patent
active
045505918
ABSTRACT:
An apparatus for monitoring particulate matter in the fluid comprises a filter means (28) through which fluid is arranged to flow. A pressure sensing means (46) senses the fluid pressure difference across the filter means and produces a pressure signal indicative of the magnitude of the pressure difference. A processing means (49) receives the pressure signal and evaluates therefrom the rate of change of the magnitude of the pressure difference in order to give an indication of particulate matter levels in the fluid. In this way on line monitoring of the debris generation in, for example an oil system, can be effected so that abnormal increases in debris can be detected and long term trends in the build-up of debris can be observed. A particular form of filter medium is also disclosed wherein the filter mean can be transported so that a filter record can be maintained and systematic X-ray analysis of the filter record can be effected.
REFERENCES:
patent: 3138015 (1964-06-01), Avery
patent: 3167949 (1965-02-01), Stenzel et al.
patent: 3554005 (1971-01-01), Koblin et al.
patent: 4117717 (1978-10-01), Isley
patent: 4263805 (1981-04-01), Isley et al.
patent: 4468954 (1984-09-01), Lanctot et al.
Cox Anthony F.
Glanville Roger
Lloyd Owen
Robbins Keith V.
Central Electricity Generating Board
Kreitman Stephen A.
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