Now if we measure the response on the plate we will notice that the amplitude changes as we change the rate of oscillation of the input force.
如果现在测量平板响应，会注意到当改变输入力的振荡频率时，响应幅值也发生变化。
Frequency response analyzer is used to measure the amplitude-frequency characteristic and phase-frequency characteristic of the networks.
频率特性分析仪用于测试网络的幅频和相频特性。
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