A Condition Monitoring Method of Hydraulic Gear Pumps Based on Multilevel Mechanism-Data Fusion

Figure 10

Signal timing diagram of , , and three-way vibration sensors with an (a–c) oil temperature of 50°C and (d–f) oil temperature of 60°C.

(a) -direction

(b) -direction

(c) -direction

(d) -direction

(e) -direction

(f) -direction