Electromechanical equation of piezoelectric crystal stack is derived from the piezoelectric equations of constant D and constant stress,but the acoustic speed of under the constant E is used in design in practical transducer design.
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- 推導晶堆的機電狀態(tài)方程時(shí) ,選用的是恒定電位移及恒定應力時(shí)的壓電方程 ,最后設計計算時(shí)卻又用的是恒定電場(chǎng)下的聲速。
