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Fig. 14

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(a) and (c) Transfer function of the different piezoelectric structures by injecting a white noise at the free end of the arm (the other end is clamped). Integrated structures: R = 200 kΩ, Murata buzzers: R = 100 kΩ, PI DuraAct patches: R = 70 kΩ. (b) and (d) Zoom on the first mode.

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