本文论述了利用电测技术测量车床静刚度的方法。这种方法与机械式测量比较,取消了加力环和千分表,代之以电测式压力传感器、数字式测力仪和电容式位移传感器、位移——振动测量仪。测量时能够连续加载,直接绘出静刚度特性曲线,同时应用最小二乘法对实验结果进行数据处理,求出车床静刚度的线性回归方程。 This article discusses the use of electrical measurement technology to measure the static stiffness lathe method. This method is compared with the mechanical measurement, the elimination of the addition of force ring and dial indicator, replaced by electrical measurement pressure sensor, digital dynamometer and capacitive displacement sensor, displacement - vibration measuring instrument. The load can be continuously measured during the measurement, and the static stiffness curve is plotted directly. At the same time, the least squares method is used to process the experimental results. The linear regression equation of lathe static stiffness is obtained.