Fig. 1 | Nature Communications

Fig. 1

From: Near-zero effective impedance with finite phase velocity for sensing and actuation enhancement by resonator pairing

Fig. 1

The concept of lowered impedance for wave emission enhancement. a Thin plates of uniform and non-uniform thicknesses carrying plane longitudinal waves. The piezoceramic patch transducers (PZT) are installed to excite the S0 Lamb waves in the plates simulating the longitudinal waves in a bar. b The amplification effects of the non-uniformity (expressed in terms of \(\hat t/t_0\), where \(\hat t\) is reduced thickness of the transducer installed zone and t0 nominal thickness) on the magnitude of the generated displacement field

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