机电耦合系数意思是压电振子在振动过程中，将机械能转变为电能，或将电能转变为机械能，这种表示能量相互变换的程度用机电耦合系数表示。
... Electromagnetic testing电磁检测 Electro-mechanical coupling factor机电耦合系数 Electron radiography电子辐射照相术 ...
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... 负温最大相对频移=△fs(负温最大)/fs(25℃) 机电耦合系数（ELECTRO MECHANICAL COUPLING COEFFICIENT） 压电应变常数D（PIEZOELECTRIC STRAIN CONSTANT） ...
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而压电性能表明在不同方向的机电耦合系数均比石英晶体相应参数大得多。
The piezoelectric property indicates that the electromechanical coupling coefficients in the different directions are much larger than the corresponding parameter of quartz crystal.
为了便于高次泛音比法的应用，提供了高次泛音比和机电耦合系数的对应表。
To facilitate the application of the higher overtone ratio method, a contrast table between the higher overtone ratio and the electromechanical coupling factors was provided.
研究了它们的介电常数，热电系数，厚度伸缩振动机电耦合系数及其温度依赖性。
The dielectric constant, pyroelectric coefficient, thickness extension vibration electromechanical coupling factor and their temperature dependence are investigated.
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