Photonic Sensors, 2014, 4 (2): 188, Published Online: Apr. 9, 2014
Blade Tip Timing Vibration Monitoring Method Based on Fiber Bragg Grating
Abstract
The ventilators have been vividly called “the lungs of mine”. The rotating blades are the core parts of a ventilator, they can influence the safety and reliability of the ventilator. This paper will use the tip-timing method based on the fiber Bragg grating magnetically coupling sensor to study and analyze the ventilator blade vibration, in order to realize long-distance and non-contact real-time online safety monitoring of blade vibration. Compared with the electronic sensorand fiber intensity reflective sensor, the fiber grating coupling magnetic sensor has such advantages as explosion-proof, working at harsh environment with humid air, dust and greasy dirt, capable of achieving long-distance signal transmission, and joining easily with other fiber Bragg grating sensors to form a network in order to achieve multi-parameter distributed online monitoring.
Fei WU, Lei LIANG, Junya XING, Lin WANG, Lang JIA. Blade Tip Timing Vibration Monitoring Method Based on Fiber Bragg Grating[J]. Photonic Sensors, 2014, 4(2): 188.