In-flight engine control pyrometer

Details In-flight engine control pyrometer In-flight engine control pyrometer

G - Physics

01

J

73/52

G01J 5/60 (2006.01)

Patent

CA 1281913

Abstract An In-Flight Engine Control Optical Pyrometer A novel dual spectra optical pyrometer for use in in-flight control of jet engines includes an optical probe containing a shutter sensitive to the air pressure within the jet engine. The shutter provides an optical beam from rotating turbine blades to an optical fiber only above a threshold pressure. A serial array of photodetectors receives the optical beam and provides first and second signals therefrom. A signal processor receives the first and second signals as well as signals indicative of the energy ratio therebetween, and provides reflection corrected energy signals from the difference between the first signals and the product of the energy ratio signals and the second signals.

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