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

Table 6

Threshold value of broadband SPL at different rotating speeds.

Rotating speed (r·min^−1)	Average (%)	Mean square error Sa (%)	Threshold value (%)
1000	1.78	0.30	0.88
1450	1.59	0.21	0.96
2000	2.19	0.41	0.96