利用機械手臂進行自動化噴塗作業，都是先由技術人員以教導方式教導機械手臂進行噴塗路徑的模擬，然後機械手臂再進行噴塗工作，這在產品多樣化的工廠中，將使自動化噴塗常需暫時停頓不能連貫。本研究是探討以機器手臂進行自動化噴塗工作時的噴塗濃度與噴槍速度的關係，當確認平面工件相對於機械手臂的位置關係，由噴槍與工件間移動速度與旋轉角度可計算出噴塗附著於工件表面的濃度，此研究有助於快速完成自動化噴塗的工作。

For automatic spray painting work, operators generally teach the robot to simulate the spray paths. The robot then follows the paths to spray workpieces repeatedly. For a production line with multiple products, the teaching procedure will interrupt the spray process. This paper discusses the relations between the density of paint and spray speed of a robotic automatic spraying. Whenever the relative position between the workpiece and the spraying gun is given, the density of paint can be calculated according to the moving speed and rotation angle between the spray gun with respect to the object. This is helpful for an automatic spraying system to work successful.