Title :
A DSP-based FFT-analyzer for the fault diagnosis of rotating machine based on vibration analysis
Author :
Betta, Giovanni ; Liguori, Consolatina ; Paolillo, Alfredo ; Pietrosanto, Antonio
Author_Institution :
DAEIMI, Cassino Univ., Italy
Abstract :
A DSP-based measurement system dedicated to the vibration analysis on rotating machines was designed and realized. Vibration signals are on-line acquired and processed to obtain a continuous monitoring of the machine status. In case of fault, the system is capable of isolating the fault with a high reliability. The paper describes in detail the approach followed to built up fault and unfault models together with the chosen hardware and software solutions. A number of tests carried out on small-size three-phase asynchronous motors highlights high promptness in detecting faults, low false alarm rate, and very good diagnostic performance
Keywords :
computerised monitoring; condition monitoring; electric machine analysis computing; fast Fourier transforms; fault diagnosis; frequency-domain analysis; induction motors; machine testing; signal processing equipment; spectral analysers; spectral analysis; vibration measurement; DSP-based FFT-analyzer; DSP-based measurement system; built up fault models; continuous monitoring; diagnostic performance; fault diagnosis; fault isolation; frequency domain analysis; hardware solutions; low false alarm rate; machine status; on-line acquired signals; rotating machine; software solutions; three-phase asynchronous motors; vibration analysis; Condition monitoring; Fault detection; Fault diagnosis; Frequency domain analysis; Instruments; Rotating machines; Signal analysis; Signal processing; Software performance; Vibration measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.928883
