Figure 10
From: Vortex Shedding Optical Flowmeter based on Photonic Crystal Fiber

FFT of the variation in frequency of the interference peak for a given flow velocity (0.31 m/sec).
From: Vortex Shedding Optical Flowmeter based on Photonic Crystal Fiber

FFT of the variation in frequency of the interference peak for a given flow velocity (0.31 m/sec).