Abstract:

In fault diagnosis of vibration, people used to find characteristics in spectrum domain. But many faults are often similiar to each other, even for good rotating machineries under unstable condition. So, it is the aim of this paper to use phase data as a new way to find the characteristics of various faults. The elementary results show that using phase data not only can judge the existence of the fault, but also can expect to identify various fault from each other.

Key words: phase data, phase measurement, fault diagnosis