Non-contact FBG sensing based steam turbine rotor dynamic balance vibration detection system

Tianliang Li; Yuegang Tan; Lin Cai

doi:10.1117/12.2197785

8 October 2015 Non-contact FBG sensing based steam turbine rotor dynamic balance vibration detection system

Tianliang Li, Yuegang Tan, Lin Cai

Proceedings Volume 9677, AOPC 2015: Optical Test, Measurement, and Equipment; 96770L (2015) https://doi.org/10.1117/12.2197785
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

This paper has proposed a non-contact vibration sensor based on fiber Bragg grating sensing, and applied to detect vibration of steam turbine rotor dynamic balance experimental platform. The principle of the sensor has been introduced, as well as the experimental analysis; performance of non-contact FBG vibration sensor has been analyzed in the experiment; in addition, turbine rotor dynamic vibration detection system based on eddy current displacement sensor and non-contact FBG vibration sensor have built; finally, compared with results of signals under analysis of the time domain and frequency domain. The analysis of experimental data contrast shows that: the vibration signal analysis of non-contact FBG vibration sensor is basically the same as the result of eddy current displacement sensor; it verified that the sensor can be used for non-contact measurement of steam turbine rotor dynamic balance vibration.

Citation Download Citation

Tianliang Li, Yuegang Tan, and Lin Cai "Non-contact FBG sensing based steam turbine rotor dynamic balance vibration detection system", Proc. SPIE 9677, AOPC 2015: Optical Test, Measurement, and Equipment, 96770L (8 October 2015); https://doi.org/10.1117/12.2197785

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