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动电效应耦合的电磁波波速怎么求出

2025-03-25 02:43:16

推荐回答（1个）

回答（1）：

是耦合器的“电磁波波速”改变，还是通过耦合器延时？延时是利用声波传播速度大大小于电磁波（电流）传播速度延迟信号到达的时间：输入信号经由压电元件转为声波，通过一定距离后到达接收压电转换再恢复为电信号，简单的说，延迟时间由声波通过发射、接收两点间距离所需要时间，减去同样距离电流传播所需要时间之差求出。

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