Research Article
The Optimization of Multimode Fiber Speckle Sensor for Microvibration
Figure 3
NIPC curve of vibration. NIPC curve of quartz step fiber: (a) 50 μm silica fiber; (b) 62.5 μm silica fiber; (c) 105 μm silica fiber; (d) 200 μm silica fiber; (e) 250 μm silica fiber; (f) 500 μm polymer optical fiber; (g) 1000 μm polymer optical fiber Inset: FFT curve.
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