Normalizing engine wear indication with R.M.S. noise

Details Normalizing engine wear indication with R.M.S. noise Normalizing engine wear indication with R.M.S. noise

1982-12-28

1986-04-29

Krass, Errol A.

Boots, shoes, and leggings

364551, 73116, G01M 1500

Patent

active

045861390

ABSTRACT:
Engine distress is indicated by ten times a normal count for a healthy engine, of signals derived from electrostatic probes (1, 2, 3) disposed in the gas stream of a gas turbine engine, within a variable time interval which is established (FIG. 7) as the integral of R.M.S. noise on one of the probes (3), thereby providing a variable time intervale indicative of the rate at which the engine is working.

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

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