Using k-Nearest Neighbor Algorithm to Identify Mechanical Vibrational Modes of a Cantilever with Spectrally Multiplexed Fiber Bragg Gratings

We demonstrated for the first time the identification of mechanical modes of a cantilever with attached fiber Bragg gratings using k-Nearest Neighbor, a machine learning algorithm. We analyzed the frequency range of 40-300 Hz and an acceleration of 1.1 ± 0.1 g.