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文章分析了影响ＣＣＤ测径仪测量精度的因素，介绍了为提高测量精度所采取的主要技术措施，给出了一种高精度非接触ＣＣＤ测径仪的硬件结构和软件设计思想。
This paper analyzes the factors that affect the measurement accuracy of the CCD caliper, introduces the main technical measures taken to improve the measurement accuracy, and gives a hardware structure and software design idea of a high precision non-contact CCD caliper.