TY - JOUR
T1 - Drive voltage dependence of electromechanical resonance in PLZT piezoelectric ceramics
AU - Uchino, Kenji
AU - Negishi, Hiroyasu
AU - Hirose, Terukiyo
PY - 1989/1/1
Y1 - 1989/1/1
N2 - Drive voltage dependence of electromechanical resonance has been investigated in PLZT piezoelectric ceramics. With increasing the ac drive voltage, some electromechanical parameters change remarkably: the resonance frequency fmdecreases, the anti-resonance frequency fndoes not shift, the mechanical quality factor Qmdecreases drastically, and the electromechanical coupling factor krincreases. On the contrary, these parameters do not change significantly with changing the dc bias voltage, keeping the ac voltage amplitude. The changes in the parameters can be computer-simulated theoretically by introducing non-linear capacitive and resisitive terms into an electrical equivalent circuit.
AB - Drive voltage dependence of electromechanical resonance has been investigated in PLZT piezoelectric ceramics. With increasing the ac drive voltage, some electromechanical parameters change remarkably: the resonance frequency fmdecreases, the anti-resonance frequency fndoes not shift, the mechanical quality factor Qmdecreases drastically, and the electromechanical coupling factor krincreases. On the contrary, these parameters do not change significantly with changing the dc bias voltage, keeping the ac voltage amplitude. The changes in the parameters can be computer-simulated theoretically by introducing non-linear capacitive and resisitive terms into an electrical equivalent circuit.
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U2 - 10.7567/JJAPS.28S2.47
DO - 10.7567/JJAPS.28S2.47
M3 - Article
AN - SCOPUS:0008011937
SN - 0021-4922
VL - 28
SP - 47
EP - 49
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - S2
ER -