超聲波感測器相關問題: @ 情侶台北一日遊2016拜託大大幫忙規劃台北一日遊行程台北一日遊行程規劃台北捷運一日遊推薦台北一日遊可以怎麼安排

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May 21st 2013, 13:58

知識問題|

發問者：	匿名
發問時間：	2013-05-21 21:58:12 ( 還有 4 天發問到期 )
解答贈點：	20 ( 共有 0 人贊助 )
回答：	0 意見： 0

最近想找一個感測器可以偵測昆蟲的振翅頻率約400Hz~600Hz 是要接收不是發出頻率唷~~ 可以給個感測器型號和電路嗎 ? 感激^^

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