Statistically correlated electrostatic engine diagnostics

Details Statistically correlated electrostatic engine diagnostics Statistically correlated electrostatic engine diagnostics

1982-12-28

1986-05-20

Chin, Gary

Boots, shoes, and leggings

364551, 73116, G01M 1500

Patent

active

045905622

ABSTRACT:
The categories assigned to waveshapes (FIGS. 57-80) of signals derived from electrostatic probes (1, 2, 3, FIG. 1) disposed in the gas stream of a gas turbine engine are combined over a classification record group of about 20 or 30 records (FIG. 81). The possible causation of signals identified by positive and negative threshold crossings is statistically combined by summation across a group of records (FIGS. 85 and 86). The quality values indicative of the likelihood of a waveform correlating to a catagory of engine event are combined across records, category by category, before decisions are made (FIGS. 87 and 88).

REFERENCES:
patent: 4128005 (1978-12-01), Arnston et al.
patent: 4135246 (1979-01-01), McMannis
patent: 4394742 (1983-07-01), Crummer et al.
patent: 4418388 (1983-11-01), Allgor et al.
patent: 4456883 (1984-06-01), Bullis et al.

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