Fig. 7
From: Development of a dental handpiece angle correction device
The data of the zero point angle of the x-axis at 30° for 10 min, showing the drift of the zero point during 699 s at 30°. The three arrows of full line, dotted line, and arrow head indicate the outranged values. The full line arrow shows the ‘zero point adjustment process’ that always occurs at the beginning of device operation for less than 1 s. There were other outranged values for the moment of 0.1 s shown with the dotted line arrow and arrow head. However, these outranged values were considered spontaneous noise because they did not induce any problems with maintaining the zero point value