Cavitation Detection in Centrifugal Pump Based on Interior Flow-Borne Noise Using WPD-PCA-RBF

Figure 2

Schematic of test rig: (1) vacuum pump; (2) cavitation tank; (3, 4, 8, 10) brake valves; (5) electromagnetic flowmeter; (6) pressure transducers; (7) model pump; (9) variable-frequency motor; (11) pressure stabilizer; (12, 13) ball valve; (14) hydrophone.