STEAM DIY - Pulley Dynamometer

STEAM DIY系列-滑輪組測力器

認識三種滑輪

• 定滑輪 : 軸的位置固定不動, 可改變力的方向, 不能省力。 
• 動滑輪 : 軸的位置可以移動, 不能改變力的方向, 可省力。
• 滑輪組 : 由定滑輪和動滑輪組 裝而成,既可以省力亦可以改變用 力方向。

Know the three types of pulleys

• Fixed pulley: The position of the shaft is fixed,
  The direction of force can be changed, but effort cannot be saved.
• Moving pulley: The position of the shaft can be moved,
  The direction of force cannot be changed, but effort can be saved.
• Pulley block: consists of fixed pulley and movable pulley block
  It is installed, which can not only save labor but also change the use of
  force direction.