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以容栅式数显卡尺为研究对东，就材质因素对容栅传感器精度的影响进行分析，并在实验基础上提出了减小材质误差的措施。
Taking capacitive grid digital caliper as the research object, the paper analyzes the influence of material factors on the capacitance sensor, and puts forward some measures to reduce the material error.