论文部分内容阅读
我所研制出精密π尺以来,已在全国得到广泛应用,《机械工人》在85年第5期上曾做过介绍。我们收到许多读者来信,对于怎样正确使用它提高测量效率,保证测量精度提出了一些问题,我们在此做如下解答。一、测量工件时,由于尺身不分布在与被测件轴线垂直的截面内,所引起的误差有多大? 测量时,不可能使尺身完全分布在与工件轴线垂直的截面内。现举例如图1所示,其中阴影截
Since I developed a precision π-foot, it has been widely used in the whole country. The “mechanic” was introduced in the fifth issue of 85th. We have received many letters from readers. We have some questions about how to use it correctly to improve the measurement efficiency and ensure the measurement accuracy. Here are some solutions to this problem. First, the measurement of the workpiece, because the ruler is not distributed in the vertical cross-section of the measured axis, the error caused by what? Measurement, it is impossible to make the ruler fully distributed in the cross-section perpendicular to the axis of the workpiece. Now for example as shown in Figure 1, where the shadow of the cut