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指針表對駐極體話筒靈敏度的檢測方法

發布時間:2020-12-08 08:40:30人氣:1111

河北百圖聲電桿防撞桶生產廠家將為您介紹如何使用指針萬用表檢測駐極體麥克風的靈敏度?

用于收音機,電話和其他電器的駐極體麥克風的靈敏度直接影響傳輸和錄制的實際效果。 麥克風的靈敏度可以簡單地用萬用表測試。

將萬用表的量程設置到RX100位置,并將測試筆的兩端連接到麥克風的兩個電極(請注意,它們不能連接到麥克風的接地電極)。萬用表的指針顯示一定的讀數后,使用它將嘴對準麥克風并輕輕吹氣(吹氣速度緩慢且均勻),并觀察吹氣時手的擺動幅度。 吹動時手的擺動越大,對話的靈敏度越高,發送和錄制的效果越好。 如果擺幅幅度不大(微動)或根本不擺幅,則意味著無法在電路中應用。


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