Studying the means and the apparatus composing in high precise dynamic measure of screw-pitch error have important academic meaning and practical applied value.

• 精密滚珠丝杠副是数控机床的关键功能部件，研究高精度的丝杠螺距精度动态测量方法和仪器组成具有重要的理论意义和实际应用价值。