Attenuation of acoustic normal modes in piezoelectric plates loaded by viscous liquids

  title={Attenuation of acoustic normal modes in piezoelectric plates loaded by viscous liquids},
  author={I. V. Anisimkin and V. I. Anisimkin},
  journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
Attenuation alphan versus viscosity eta of adjacent liquid is measured for each normal mode n generated in 30 different plates of commercially available, piezoelectric crystals with thickness-to-wavelength ratio in the range h/lambda = 0.6-2.5. Two modes with an optimal combination of sensitivity (0.1 dB/mmmiddotcP), insertion loss (<35 dB), and stop-band rejection (>15 dB) are found in liquid-loaded 128degY, X + 90deg-LiNbO3 with h/lambda = 1.67. Both modes are suited for viscosity… CONTINUE READING
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