A Method of Fault Detection and Diagnosis for Electromagnetic Direction Valve Based on Artificial Neural Network

Min Qiang Dai; Wei Cai; Sheng Dun Zhao

doi:10.4028/www.scientific.net/AMR.476-478.2384

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 476-478A Method of Fault Detection and Diagnosis for...

A Method of Fault Detection and Diagnosis for Electromagnetic Direction Valve Based on Artificial Neural Network

Abstract:

The magnetic field and vibration signal of electromagnetic direction valve can be detected real-timely by a non-intrusive on line detection device, which can use to monitor working state of the valve. A method of fault detection and diagnosis for electromagnetic direction valve from the signal detected by the non-intrusive on line detection device is presented in this paper. The wave frequency bands energy analysis method is adopted to distinguish the electromagnetic direction valve’s state, and the vibration signal are decomposed by three-layer wavelet packet which wavelet basis is db10. The fault identification method is based on BP artificial neural network (ANN), which is the most well-known three-layers BP ANN whose input and output layers have 8 and 3 neurons respectively.

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Periodical:

Advanced Materials Research (Volumes 476-478)

Pages:

2384-2388

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.476-478.2384

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Online since:

February 2012

Authors:

Min Qiang Dai, Wei Cai, Sheng Dun Zhao

Keywords:

Artificial Neural Network (ANN), Electromagnetic Direction Valve, Fault Detection and Diagnosis, Wavelet Packet

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References

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