Blade by Blade Tip Clearance Measurement

Table 1

Spinning rig wheel geometry.

Diameter	204 mm
Number of blades	24
Blade material	Aluminium
Blade passing frequency @ 10,000 rpm	4 KHz
Blade stagger angle	Zero
Mark space ratio	0.06
Blade tip velocity @ 10,000 rpm	107 m/s
Blade tip thickness	1.5 mm
Blade length	12 mm