本文对于以电阻应变片连结成全等臂电桥进行工作的平面磨床用二向测力仪,在作用点变化的垂直力作用下测值的变化情况进行了研究,对不同情况下的电桥输出进行了计算,并指出了减小输出变化率的途径。 In this paper, two-way dynamometer of a surface grinder, which is connected by a strain gage to a full arm bridge, is studied under the action of the vertical force with varying points of action. The output of the bridge under different conditions The calculations were made and the ways to reduce the rate of change of output were pointed out.