中文摘要：

为解决双圆锥形圆弧刀研磨力在线测量难题,设计了杠杆原理为基础的圆弧刀研磨力测量仪,建立了圆弧刀与磨盘之间研磨力数学模型.该仪器采用悬臂梁称重传感器,并以DSP2812为主控芯片,实现了圆弧刀研磨力的在线采集、处理、存储及实时显示等功能.实验表明：仪器的称重传感精度优于0.15 N,圆弧刀研磨力变化范围降低28.8％,满足圆弧刀研制的需求.该仪器性能稳定,具有较好的实用价值,为高质量的圆弧刀研制和光栅刻划技术提供了技术保障.

英文摘要：

To solve difficulty of on-line measurement,a double-conical arc tool lapping pressure measuring instrument based on leverage is designed,also a mathematical model of lapping pressure between the arc tool and disc is established.The instrument uses cantilever load cell,and applies DSP2812 as main control chip,which achieves online acquisition,processing,storing and real-time display of lapping pressure.Experiments show that the precision of the instrument is prior to 0.15N and changing range of lapping pressure reduced bv 28.8 ％.The instrument is stable and has good practical value that can provide the support for manufacture of high quality arc tool and grating ruling.