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本文研究了应用计算机对传统的触针式轮廓仪进行改造时，在数字化技术方面存在的几个主要问题．分析了如何选择合理的采样间隔和合适的Ａ／Ｄ转换器．研究了不同的计算方法对测量精度的影响．简述了数字滤波器较模拟滤波器的优越性．为新型轮廓仪的设计和旧轮廓仪的改造提供了参改依据．
This paper studies several major problems in digital technology when using computers to transform traditional stylus profilers. Analyzed how to choose the reasonable sampling interval and suitable A / D converter. The influence of different calculation methods on the measurement accuracy is studied. The advantages of digital filters over analog filters are briefly described. It provides reference for the design of the new profiler and the reconstruction of the old profiler.