In the thesis, a method of on-line measurement of workpiece contouring error is used on numerically-controlled machine tools or machining centers.

• 对一个机械加工而成的机械零件来说,由于实际使用的需要,不仅对零件的尺寸精度有一定要求,而且对零件的轮廓精度也有一定要求。