Table 1 Data description of turbofan engine sensors.

From: Remaining useful life prognosis of turbofan engines based on deep feature extraction and fusion

Sensor number

Sensor description

Units

1

Fan inlet temperature

°R

2

LPC outlet temperature

°R

3

HPC outlet temperature

°R

4

LPT outlet temperature

°R

5

Fan inlet pressure

psia

6

Bypass-duct pressure

psia

7

HPC outlet pressure

psia

8

Physical fan speed

rpm

9

Physical core speed

rpm

10

Engine pressure ratio P50/P2

–

11

HPC outlet static pressure

psia

12

Ratio of fuel flow to Ps30

pps/psia

13

Corrected fan speed

rpm

14

Corrected core speed

rpm

15

Bypass ratio

–

16

Burner fuel–air ratio

–

17

Bleed enthalpy

–

18

Required fan speed

rpm

19

Required fan conversion speed

rpm

20

High-pressure turbines cool air flow

lb/s

21

Low-pressure turbines cool air flow

lb/s