Time: 10/31/2017 9:27:40 AM

The theoretical accuracy is calculated as follows: 2500 pulse 4 octave should have 2500*4=10000 pulses. The angle of 360 degrees 360*60*60 divided by 10000 is the angle of each pulse, the unit is the degree of scale grating itself has a precision or scale bar, through the ball screw connection can know the moving distance