单项选择题

下列对于压缩式电加速度传感器的描述正确的是:( ) A.
剪切式压电加速度传感器的灵敏度高,横向灵敏度大。 B.
弯曲式压电加速度传感器固有共振频率高,灵敏度高。 C.
压电传感器的内阻抗底、输出电信号弱。 D.
按照压电式传感器的工作原理及其等效电路,传感器可看成电压发生器,也可看成电荷发生器。

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