Usually in the situation, may survey sketchily using the Oscilloscope was measured that the signal the frequency, the precision measuring needs to use the digital frequency meter.

 
  • 它的基本功能是测量正弦信号、方波信号、尖脉冲信号以及其他各种单位时间内变化的物理量,因此,用途十分广泛。
今日热词
目录 附录 查词历史