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PIEZOELECTRIC EXAMPLE 2

1.25 MHz Composites vs. K350 Piezoelectric Ceramic

  ELECTROMECHANICAL PROPERTIES COMPARISON:
K350 Ceramic Compared to 2.00 MHz Composites
(three variations using the K350 ceramic)
Note:  The above values are nominal. 
  Fa Fa Fa/Fr Zr qr C D kt K3 Qm d33 nt
Sample (kHz) (kHz)   (ohms) (deg) (pF)         pm/V kHz-in
K350 Ceramic 1.424 1.263 1.127 2.30 4 5578 0.013 0.499 1883 46 435 78.00
2.0 MHz A 2.81 2.08 1.37 10.90 -34 2504 0.034 0.705 410 6.07 420 56.10
2.0 MHz B 2.55 1.92 1.32 8.80 -34 3810 0.045 0.668 646 5.73 390 53.80


  PHYSICAL PROPERTIES COMPARISON:
K350 Ceramic Compared to 2.00 MHz Composites
(three variations using the K350 ceramic)
Note:  The above values are nominal. 
  Vol. % Ceramic qr Diameter Thickness Acoustic Impedance
Sample (%) (g/cm3) (in) (in) (MRayL)
K350 Ceramic 100 7.80 1.00 0.061 30.9
2.0 MHz A 50 4.55 1.00 0.028 13.0
2.0 MHz B 50 4.40 1.00 0.028 12.0


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