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目前静态测量螺纹螺距误差一般都在万能测量显微镜上用影像法、干涉法或轴切法,其测量方法的极限误差都超过±2μ,若测量长度超过80毫米,则测量误差更大,远远不能满足当前工业生产和技术发展的需要。为了充分发挥现有仪器设备的潜力,在万能测量显微镜上采用组合测量来提高结果的精度。但若按最小二乘法进行数学处理相当繁琐,不适合于现场生产中应用,本文就介绍一种利用表格形式来进行数据处理,适用于差值等精度组合测量,计算简
The current static measurement of thread pitch error are generally measured by a universal microscope on the microscope, interferometry or axial cut method, the limit error of the measurement methods are more than ± 2μ, if the measurement length of more than 80 mm, the measurement error is greater, far Can not meet the current needs of industrial production and technological development. To give full play to the potential of existing instrumentation, combined measurements are used on a universal measuring microscope to improve the accuracy of the results. However, if the mathematical processing by the least squares method is quite complicated and not suitable for on-site production, this paper introduces a form of data processing, suitable for the combination of precision and other differences,