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压电传感器所使用的前置放大器在电路中起着很重要的作用,以下说法错误的是( )。

单选题
2021-09-01 20:18
A、将传感器的高阻抗输入变成低阻抗输出。
B、将传感器的底阻抗输入变成高阻抗输出。
C、将压电传感器的微弱信号放大。
D、电压放大器和电荷放大器的区别在于电荷放大器带有一个深度负反馈。
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正确答案
B

试题解析

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