Detection of Inception Cavitation in Centrifugal Pump by Fluid-Borne Noise Diagnostic

Table 5

Incipient cavitation coefficient based on liquid-borne noise, airborne noise, and solid-borne vibration.

Flow coefficient φ	0.032	0.065	0.098
Incipient cavitation coefficient based on liquid-borne noise σio	0.282	0.318	0.357
Incipient cavitation coefficient based on airborne noise σeo	0.275	0.310	0.350
Incipient cavitation coefficient based on solid-borne vibration σso1 at M1	0.276	0.310	0.341
Incipient cavitation coefficient based on solid-borne vibration σso2 at M2	0.281	0.311	0.339
Incipient cavitation coefficient based on solid-borne vibration σso3 at M3	0.280	0.312	0.348
Incipient cavitation coefficient based on solid-borne vibration σso4 at M4	0.282	0.311	0.339
Incipient cavitation coefficient based on solid-borne vibration σso5 at M5	0.282	0.312	0.345