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摘要
A hydrostatic pressure sensor based on morphology dependent resonances in a polymeric tube is presented. By internal pressurization, normal tensions will increase the device's size and shrink its wall thickness, inducing a shift in the resonant wavelengths of the resonator. Numerical simulations indicate that there are two modal regimes of sensitivity and a maximum achievable sensitivity, related to the device's geometry, constitutive material and analysed mode order. A sensitivity as high as 0.36 +/- 0.01 nm/bar has been experimentally found for a 1.8mm diameter PMMA tube with wall thickness of 80 mu m.
- 出版日期2015-4-20
