An Improved Blade Vibration Parameter Identification Method considering Tip Clearance Variation

Table 1

Quadratic fitting results of different interception ranges of the pulse signal.

Interception range (%)	Fitting peak time (us)	Fitting peak voltage (mV)
20	−1.3746	−197.5179
30	−0.6123	−204.8899
40	−0.4207	−229.1812
50	−0.1835	−269.8284