| 摘要 |
<p>#CMT# #/CMT# The system has an acquisition unit (23) collecting a set of temporal measurements including exhaust gas temperature (T495) and air inlet temperature (T12) of a jet engine. A computer (25) calculates reduced temperature (T495r) of exhaust gas corresponding to a chain of measurements, and calculates an abnormality detection indicator (T495cr) according to the reduced temperature of exhaust gas. The computer performs a statistical test on abnormality detection indicator, and analyzes the results of the statistical test to assess the validity of the chain of measurement. #CMT# : #/CMT# An independent claim is also included for a method for monitoring validity of temperature measurement chain of exhaust gases of a jet engine of an aircraft. #CMT#USE : #/CMT# System for monitoring validity of temperature measurement chain of exhaust gases of a jet engine of an aircraft. #CMT#ADVANTAGE : #/CMT# The system reduces the number of false alarms by improving the effectiveness of the temperature measurement chain of exhaust gases without hardware modification and without manual intervention. The system allows evolution of defects on the temperature measurement chain of exhaust gases to be observed while compensating for influences of surrounding parameters. The system allows anticipation of detection of failures on the measurement of temperature of exhaust gases to avoid rise in temperature. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a block diagram of a system for monitoring the validity of temperature measurement chain of exhaust gases of a jet engine of an aircraft. T12 : Air inlet temperature T495 : Exhaust gas temperature T495cr : Abnormality detection indicator T495r : Reduced temperature of exhaust gas 23 : Acquisition unit 25 : Computer.</p> |
