The result shows, under different vibration mode, equivalent parallel capacitance and resistance are not constant value. There is negative damp effect in transducer system at the operating mode.

结果表明，在换能器不同振动模态下，等效并联电容电阻并非恒定值，而且实际支承工况下换能器系统工作时存在负阻尼效应。

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The output power mechanism of a separately excited DC motor can be equivalent to a variable resistance, which is parallel with the armature winding of the motor.

若将他励直流电动机输出功率的机理等效为一个与电动机电枢绕组并联的可变电阻，可以得到他励直流电动机可变电阻型等效电路图。

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However, since the cable leakage resistance (RL) is in parallel with RS, the actual measured resistance (RM) is reduced, as shown in the parallel equivalent circuit of Figure 2-34b.

然而，由于电缆泄漏电阻（RL）与RS并联，实际测量的电阻（RM）有所降低，如图2-34b的并联等效电路所示。

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