Low-cost vibration sensor based on dual fiber Bragg gratings and light intensity measurement.


A vibration monitoring system based on light intensity measurement has been constructed, and the designed accelerometer is based on steel cantilever frame and dual fiber Bragg gratings (FBGs). By using numerical simulations for the dual FBGs, the dependence relationship of the area of main lobes on the difference of initial central wavelengths is obtained… (More)
DOI: 10.1364/AO.52.006782