Research and Implementation of Blade Tip Timing Vibration Monitoring Method Based on Fiber Bragg Magnetic Coupling Sensors

Abstract:

Fiber Bragg grating sensor is a kind of optical fiber sensor, the sensing process based on fiber grating is through the external physical parameters on fiber Bragg wavelength modulation to obtain sensing information. It is a kind of wavelength modulation type optical fiber sensor. Fiber Bragg grating sensor can realize the direct measurement of temperature, strain and other physical quantities. This paper have the research and analysis on blade tip of mine by using fiber Bragg magnetic coupling sensor, in order to realize long distance and non-contact real-time safety monitoring of blade vibration. The paper first describes the theoretical method of the detection of blade tip timing vibration, then does the dynamic characteristic test. By means of the compare between normal and damaged blade, the method is proved feasible.

• Periodical: Advanced Materials Research (Volume 823)
• Pages: 232-235
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.823.232
• Online since: October 2013
• Authors: Fei Wu, Xiang Po Chen, Jian Wang, Rui Tao Li
• Keywords: Blade Vibration, Fiber Bragg, Monitor

References

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