Blade Serial Number Identification Based on Blade Tip Clearance without OPR Sensor

Table 2

Hypothetical value and identification value of blade serial number corresponding to the initial dynamic blade tip clearance pulse.

Working condition	1000 r/min	2000 r/min	3000 r/min	4000 r/min	5000 r/min	6000 r/min
Hypothetical value	4	6	3	2	7	5
Identification value	8 – 5 + 1 = 4	8 – 3 + 1 = 6	8 – 6 + 1 = 3	8 – 7 + 1 = 2	8 – 2 + 1 = 7	8 – 4 + 1 = 5