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【正文】 le of creating curve and circle, using increment of small line or polygon.《 NC Technology 》 E－ mail: Example of continuous path《 NC Technology 》 E－ mail: CNC Interpolation? Interpolator– Hardware device (NC system)– Software program (CNC system)? Functions:252。Halfclosedloop servodrive252。 The servomotor is usually stepping motor252。 The actions performed by the control system are simple216。Popular with NC system252。 Unable to sense backlash or leadscrew windup due to varying loads.《 NC Technology 》 E－ mail: closedloop servodrive《 NC Technology 》 E－ mail: closedloop servodrive252。 Higher cost, unstablevConventional variablespeed AC or DC motors, called servos.《 NC Technology 》 E－ mail: CNC application216。 Punching （ 沖壓）216。 Inspection （ 檢測(cè)）216。 Grinding （ 磨削）216。 Turning （ 車外圓）216。Feedback sensor directly measures the position of worktable.252。Convenient to adjust。 Any reaction forces opposing the actuation are small enough to have no effect on the actuation.Used in the economic NC machine!《 NC Technology 》 E－ mail: Halfclosedloop servodrive《 NC Technology 》 E－ mail: Halfclosedloop servodrive252。 High accuracy, easy implementation and patible with digital signals167。 Simplest and least cost form of servodrive252。Generate intermediate coordinate positions along the program path.《 NC Technology 》 E－ mail: Types of Interpolation5 types of interpolation:? Linear（ 直線）? Circular（ 圓?。? Helical（ 螺旋線 ）? Parabolic（ 拋物線）? Cubic (三次 )《 NC Technology 》 E－ mail: Types of NC ServoDrive Systems252。t meet both quantity and quality requirements at the same time. 《 NC Technology 》 E－
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