Fault Analysis and Diagnosis Technology of Low-Speed Heavy-Duty Equipment Based on Microscope Technology and Wavelet Packet

  • Weichi Pei, Jianwei Dong, Haiyang Long et al.
Keywords: Low-speed Heavy-duty Equipment; Fault Signal; Fault of Equipment; Wavelet Packet; Microscopic Techniques

Abstract

The loss caused by the failure of production equipment, especially power machinery equipment, has increased greatly, and the maintenance cost has also increased accordingly. When the low-speed and heavy-duty equipment fails, its fault signal generally shows the characteristics of non-stationary and non-periodic. The loss caused by the failure of production equipment, especially power machinery equipment, has increased greatly, and the maintenance cost has also increased accordingly. Some large-scale machinery has become the most basic equipment in modern large-scale production equipment. In the event of failure of these devices, local or even entire production lines will be discontinued. The earlier the fault is discovered, the more helpful the safe and reliable operation of the mechanical equipment. In order to ensure the normal production order, it is urgent to carry out research work on the micro-shock feature extraction of low-speed heavy-duty equipment failure. Based on the wavelet packet analysis method, this paper analyzes the types and characteristics of low-speed heavy-duty equipment faults. The fault signal data acquisition and analysis of low-speed heavy-duty equipment can realize the analysis of the time domain and frequency domain of the signal. Confocal laser scanning microscopy has been extended to the field of optical microscopy, including confocal fluorescence microscopy, confocal scanning fiber microscopy, color confocal laser microscopy, confocal grating optical microscopy and so on. It will soon become an important tool for semiconductor material testing and biomedical diagnosis. Scanning near field optical microscopy (SNOM) and surface plasmon resonance (SPR) are used to study the surface plasmon resonance (SPR) of gold films. A novel Kretschmann type surface plasmon resonance coupling device with unique structure was designed and built. Meanwhile, the preparation method of surface plasmon with thickness gradient was designed.

Published
2019-04-13